10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

____________________________________________________

FORM 10-Q

(Mark one)

☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended June 30, 2021

OR

☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from                      to                     

Commission File Number 001-35940

____________________________________________________

CHANNELADVISOR CORPORATION

(Exact name of registrant as specified in its charter)

____________________________________________________ 

Delaware	56-2257867
(State or Other Jurisdiction of Incorporation or Organization)	(I.R.S. Employer Identification No.)
3025 Carrington Mill Boulevard, Morrisville, NC	27560
(Address of principal executive offices)	(Zip Code)

(919) 228-4700

(Registrant's telephone number, including area code)

N/A

(Former name, former address and former

fiscal year, if changed since last report)

____________________________________________________ 

Securities registered pursuant to Section 12(b) of the Exchange Act:

Title of each class	Trading Symbol	Name of each exchange on which registered
Common Stock, $0.001 par value	ECOM	New York Stock Exchange

Indicate by check mark whether the registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  ☒    No   ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files).    Yes  ☒    No  ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth company. See the definitions of "large accelerated filer," "accelerated filer," "smaller reporting company" and "emerging growth company" in Rule 12b-2 of the Securities Exchange Act of 1934.

Large accelerated filer	☐	Accelerated filer	☒
Non-accelerated filer	☐	Smaller reporting company	☐
Emerging growth company	☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ¨

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Securities Exchange Act of 1934).    Yes  ☐    No  ☒

The number of outstanding shares of the registrant's common stock, par value $0.001 per share, as of the close of business on July 30, 2021 was 29,833,225.

TABLE OF CONTENTS

	PAGE
PART I. FINANCIAL INFORMATION
Item 1. Financial Statements
Condensed Consolidated Balance Sheets as of June 30, 2021 (unaudited) and December 31, 2020	2
Unaudited Condensed Consolidated Statements of Operations for the three and six months ended June 30, 2021 and 2020	3
Unaudited Condensed Consolidated Statements of Comprehensive Income for the three and six months ended June 30, 2021 and 2020	4
Unaudited Condensed Consolidated Statements of Cash Flows for the six months ended June 30, 2021 and 2020	5
Notes to Unaudited Condensed Consolidated Financial Statements	6
Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations	14
Item 3. Quantitative and Qualitative Disclosures About Market Risk	29
Item 4. Controls and Procedures	29
PART II. OTHER INFORMATION
Item 1. Legal Proceedings	30
Item 1A. Risk Factors	30
Item 2. Unregistered Sales of Equity Securities and Use of Proceeds	46
Item 3. Defaults Upon Senior Securities	47
Item 4. Mine Safety Disclosures	47
Item 5. Other Information	47
Item 6. Exhibits	48
Signatures	49

1

PART I - FINANCIAL INFORMATION

ITEM 1. FINANCIAL STATEMENTS AND SUPPLEMENTARY DATA

CHANNELADVISOR CORPORATION AND SUBSIDIARIES

CONDENSED CONSOLIDATED BALANCE SHEETS

(in thousands, except share and per share data)

	June 30, 2021		December 31, 2020
	(unaudited)
Assets
Current assets:
Cash and cash equivalents	$	90,351	$	71,545
Accounts receivable, net of allowance of $407 and $417 as of June 30, 2021 and December 31, 2020, respectively	25,261		24,705
Prepaid expenses and other current assets	15,209		13,874
Total current assets	130,821		110,124
Operating lease right of use assets	6,302		8,141
Property and equipment, net	7,898		8,707
Goodwill	30,990		30,990
Intangible assets, net	3,585		4,155
Deferred contract costs, net of current portion	16,291		14,040
Long-term deferred tax assets, net	4,426		3,551
Other assets	886		953
Total assets	$	201,199	$	180,661
Liabilities and stockholders' equity
Current liabilities:
Accounts payable	$	818	$	158
Accrued expenses	15,837		14,008
Deferred revenue	27,040		22,819
Other current liabilities	5,717		6,029
Total current liabilities	49,412		43,014
Long-term operating leases, net of current portion	2,944		5,394
Other long-term liabilities	1,688		2,162
Total liabilities	54,044		50,570
Commitments and contingencies
Stockholders' equity:
Preferred stock, $0.001 par value, 5,000,000 shares authorized, no shares issued and outstanding as of June 30, 2021 and December 31, 2020	—		—
Common stock, $0.001 par value, 100,000,000 shares authorized, 29,830,607 and 29,020,424 shares issued and outstanding as of June 30, 2021 and December 31, 2020, respectively	30		29
Additional paid-in capital	295,950		288,842
Accumulated other comprehensive loss	(1,157)		(1,095)
Accumulated deficit	(147,668)		(157,685)
Total stockholders' equity	147,155		130,091
Total liabilities and stockholders' equity	$	201,199	$	180,661

The accompanying notes are an integral part of the unaudited condensed consolidated financial statements.

2

CHANNELADVISOR CORPORATION AND SUBSIDIARIES

UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

(in thousands, except share and per share data)

	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Revenue	$	41,543	$	37,443	$	80,709	$	69,475
Cost of revenue	9,533		7,053		17,941		14,116
Gross profit	32,010		30,390		62,768		55,359
Operating expenses:
Sales and marketing	15,159		12,619		29,791		24,959
Research and development	5,908		4,543		11,435		9,344
General and administrative	6,835		6,033		11,717		11,768
Total operating expenses	27,902		23,195		52,943		46,071
Income from operations	4,108		7,195		9,825		9,288
Other (expense) income:
Interest (expense) income, net	(33)		85		(66)		211
Other (expense) income, net	(5)		31		(135)		39
Total other (expense) income	(38)		116		(201)		250
Income before income taxes	4,070		7,311		9,624		9,538
Income tax (benefit) expense	(490)		325		(393)		545
Net income	$	4,560	$	6,986	$	10,017	$	8,993
Net income per share:
Basic	$	0.15	$	0.25	$	0.34	$	0.32
Diluted	$	0.15	$	0.24	$	0.32	$	0.31
Weighted average common shares outstanding:
Basic	29,764,013		28,489,086		29,530,369		28,325,426
Diluted	31,402,695		29,700,524		31,269,427		29,362,886

The accompanying notes are an integral part of the unaudited condensed consolidated financial statements.

3

CHANNELADVISOR CORPORATION AND SUBSIDIARIES

UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(in thousands)

	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Net income	$	4,560	$	6,986	$	10,017	$	8,993
Other comprehensive income (loss):
Foreign currency translation adjustments	88		299		(62)		(501)
Total comprehensive income	$	4,648	$	7,285	$	9,955	$	8,492

The accompanying notes are an integral part of the unaudited condensed consolidated financial statements.

4

CHANNELADVISOR CORPORATION AND SUBSIDIARIES

UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(in thousands)

	Six Months Ended June 30,
	2021		2020
Cash flows from operating activities
Net income	$	10,017	$	8,993
Adjustments to reconcile net income to cash and cash equivalents provided by operating activities:
Depreciation and amortization	3,479		3,000
Bad debt expense	47		504
Stock-based compensation expense	6,624		5,470
Deferred income taxes	(893)		532
Other items, net	(1,760)		(420)
Changes in assets and liabilities:
Accounts receivable	(527)		(2,426)
Prepaid expenses and other assets	(318)		(850)
Deferred contract costs	(3,282)		(901)
Accounts payable and accrued expenses	(249)		1,177
Deferred revenue	4,448		(1,623)
Cash and cash equivalents provided by operating activities	17,586		13,456
Cash flows from investing activities
Purchases of property and equipment	(494)		(580)
Payment of software development costs	(1,631)		(1,407)
Cash and cash equivalents used in investing activities	(2,125)		(1,987)
Cash flows from financing activities
Repayment of finance leases	(8)		(1,415)
Proceeds from exercise of stock options	3,722		2,134
Payment of statutory tax withholding related to net-share settlement of restricted stock units	(342)		—
Cash and cash equivalents provided by financing activities	3,372		719
Effect of currency exchange rate changes on cash and cash equivalents	(27)		(98)
Net increase in cash and cash equivalents	18,806		12,090
Cash and cash equivalents, beginning of period	71,545		51,785
Cash and cash equivalents, end of period	$	90,351	$	63,875
Supplemental disclosure of cash flow information
Cash paid for interest	$	36	$	105
Cash paid for income taxes, net	$	338	$	163
Supplemental disclosure of noncash investing and financing activities
Accrued statutory tax withholding related to net-share settlement of restricted stock units	$	2,896	$	1,639
Accrued capital expenditures	$	16	$	203

The accompanying notes are an integral part of the unaudited condensed consolidated financial statements.

5

CHANNELADVISOR CORPORATION AND SUBSIDIARIES

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

1. DESCRIPTION OF THE BUSINESS

ChannelAdvisor Corporation ("ChannelAdvisor" or the "Company") was incorporated in the state of Delaware and capitalized in June 2001. The Company began operations in July 2001. ChannelAdvisor is a leading multichannel commerce platform whose mission is to connect and optimize the world's commerce. For over two decades, ChannelAdvisor has helped brands and retailers worldwide improve their online performance by expanding sales channels, connecting with consumers across the entire buying cycle, optimizing their operations for peak performance and providing actionable analytics to improve competitiveness. Thousands of customers depend on ChannelAdvisor to securely power their e-commerce operations on hundreds of channels, including Amazon, eBay, Facebook, Google and Walmart. The Company is headquartered in Morrisville, North Carolina and maintains sales, service, support and research and development offices in various domestic and international locations.

2. SIGNIFICANT ACCOUNTING POLICIES

Principles of Consolidation

The accompanying condensed consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation.

Interim Condensed Consolidated Financial Information

The accompanying condensed consolidated financial statements and footnotes have been prepared in accordance with generally accepted accounting principles in the United States of America, or U.S. GAAP, as contained in the Financial Accounting Standards Board, or FASB, Accounting Standards Codification, or ASC, for interim financial information. In the opinion of management, the interim financial information includes all adjustments of a normal recurring nature necessary for a fair presentation of financial position, the results of operations, comprehensive loss and cash flows. The results of operations for the three and six months ended June 30, 2021 are not necessarily indicative of the results for the full year or the results for any future periods, especially in light of the ongoing impacts, and potential future effects of, the COVID-19 pandemic on the Company’s business, operations and financial performance. These unaudited interim financial statements should be read in conjunction with the audited financial statements and related footnotes for the year ended December 31, 2020, or fiscal 2020, which are included in the Company's Annual Report on Form 10-K for fiscal 2020. There have been no material changes to the Company's significant accounting policies from those described in the footnotes to the audited financial statements contained in the Company's Annual Report on Form 10-K for fiscal 2020. 

Recent Accounting Pronouncements

The Company has reviewed new accounting pronouncements that were issued during the six months ended June 30, 2021 and does not believe that these pronouncements are applicable to the Company, or that they will have a material impact on its financial position or results of operations.

Use of Estimates

The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the amounts reported in the condensed consolidated financial statements and accompanying notes. Actual results could differ from those estimates.

On an ongoing basis, the Company evaluates its estimates, including those related to the accounts receivable allowance, the useful lives of long-lived assets and other intangible assets, income taxes, assumptions used for purposes of determining stock-based compensation, leases, including estimating lease terms and extensions, and revenue recognition, including standalone selling prices for contracts with multiple performance obligations and the expected period of benefit for deferred contract costs, among others. Estimates and assumptions are also required to value assets acquired and liabilities assumed as well as contingent consideration, where applicable, in conjunction with business combinations. The Company bases its estimates on historical experience and on various other assumptions that it believes to be reasonable, the results of which form the basis for making judgments about the carrying value of assets and liabilities.

6

3. STOCKHOLDERS' EQUITY

The following tables summarize quarterly stockholders' equity activity for the six-month periods ended June 30, 2021 and 2020 (in thousands, except number of shares):

	Quarterly Activity For The Six Months Ended June 30, 2021
	Common Stock			Additional Paid-In Capital		Accumulated Other Comprehensive Loss		Accumulated Deficit		Total Stockholders' Equity
	Shares	Amount
Balance, December 31, 2020	29,020,424	$	29	$	288,842	$	(1,095)	$	(157,685)	$	130,091
Exercise of stock options and vesting of restricted stock units	802,270	1		3,586		—		—		3,587
Stock-based compensation expense	—	—		3,048		—		—		3,048
Statutory tax withholding related to net-share settlement of restricted stock units	(89,842)	—		(2,061)		—		—		(2,061)
Net income	—	—		—		—		5,457		5,457
Foreign currency translation adjustments	—	—		—		(150)		—		(150)
Balance, March 31, 2021	29,732,852	30		293,415		(1,245)		(152,228)		139,972
Exercise of stock options and vesting of restricted stock units	146,164	—		136		—		—		136
Stock-based compensation expense	—	—		3,576		—		—		3,576
Statutory tax withholding related to net-share settlement of restricted stock units	(48,409)	—		(1,177)		—		—		(1,177)
Net income	—	—		—		—		4,560		4,560
Foreign currency translation adjustments	—	—		—		88		—		88
Balance, June 30, 2021	29,830,607	$	30	$	295,950	$	(1,157)	$	(147,668)	$	147,155

	Quarterly Activity For The Six Months Ended June 30, 2020
	Common Stock			Additional Paid-In Capital		Accumulated Other Comprehensive Loss		Accumulated Deficit		Total Stockholders' Equity
	Shares	Amount
Balance, December 31, 2019	28,077,469	$	28	$	278,111	$	(1,740)	$	(176,750)	$	99,649
Cumulative effect of accounting change (1)	—	—		—		—		240		240
Exercise of stock options and vesting of restricted stock units	394,998	—		87		—		—		87
Stock-based compensation expense	—	—		2,914		—		—		2,914
Statutory tax withholding related to net-share settlement of restricted stock units	(107,398)	—		(980)		—		—		(980)
Net income	—	—		—		—		2,007		2,007
Foreign currency translation adjustments	—	—		—		(800)		—		(800)
Balance, March 31, 2020	28,365,069	28		280,132		(2,540)		(174,503)		103,117
Exercise of stock options and vesting of restricted stock units	330,692	1		2,046		—		—		2,047
Stock-based compensation expense	—	—		2,556		—		—		2,556
Statutory tax withholding related to net-share settlement of restricted stock units	(48,675)	—		(659)		—		—		(659)
Net income	—	—		—		—		6,986		6,986
Foreign currency translation adjustments	—	—		—		299		—		299
Balance, June 30, 2020	28,647,086	$	29	$	284,075	$	(2,241)	$	(167,517)	$	114,346

(1) The Company recorded a reduction to accumulated deficit at January 1, 2020 as a result of its adoption of ASU 2016-13, Financial Instruments - Credit Losses.

7

4. GOODWILL AND INTANGIBLE ASSETS

The Company has acquired intangible assets in connection with its business acquisitions. These assets were recorded at their estimated fair values at the acquisition date and are being amortized over their respective estimated useful lives using the straight-line method. The estimated useful lives and amortization methodology used in computing amortization are as follows:

	Estimated Useful Life	Amortization Methodology
Customer relationships	7 years	Straight-line
Acquired technology	7 years	Straight-line

Amortization expense associated with the Company's intangible assets was $0.3 million and $0.2 million for the three months ended June 30, 2021 and 2020, respectively, and $0.6 million and $0.3 million for the six months ended June 30, 2021 and 2020, respectively.

There were no changes to the Company's goodwill during the six months ended June 30, 2021.

5. FAIR VALUE OF MEASUREMENTS

The Company uses a three-tier fair value hierarchy to classify and disclose all assets and liabilities measured at fair value on a recurring basis, as well as assets and liabilities measured at fair value on a non-recurring basis, in periods subsequent to their initial measurement. The hierarchy requires the Company to use observable inputs when available, and to minimize the use of unobservable inputs when determining fair value. The three tiers are defined as follows:

•Level 1. Observable inputs based on unadjusted quoted prices in active markets for identical assets or liabilities;

•Level 2. Inputs, other than quoted prices in active markets, that are observable either directly or indirectly; and

•Level 3. Unobservable inputs for which there is little or no market data, which require the Company to develop its own assumptions.

The carrying amounts of certain of the Company's financial instruments, including cash and cash equivalents, accounts receivable, accounts payable and accrued expenses approximate their respective fair values due to their short-term nature.

The acquisition of Blueboard, a private limited company organized under the laws of France ("BlueBoard"), on July 23, 2020 included a contingent consideration arrangement that allows for payments of up to $3.0 million based upon the achievement of specified annual revenue targets through July 2023. Contingent consideration was measured at fair value at the acquisition date and is remeasured at fair value at each reporting date until the contingency is resolved.

The fair value of the contingent consideration related to the BlueBoard acquisition was estimated utilizing Black-Scholes option pricing models in which various scenarios for achievement of the financial targets and resulting payouts are then discounted to determine the present value of the resulting liability. Key assumptions used in the measurement of fair value of contingent consideration include the forecasted revenue growth, revenue volatility and discount rates among other assumptions. Changes in any valuation inputs in isolation may result in a significantly lower or higher fair value measurement in the future. The fair value of the contingent consideration is recorded in "Other long-term liabilities" on the Company's consolidated balance sheet. Changes in the fair value of contingent consideration are recognized within general and administrative expenses in the Company’s consolidated statements of operations.

The following table presents the changes to the Company's liability for acquisition-related contingent consideration for the six months ended June 30, 2021 (in thousands):

Balance as of December 31, 2020	$	1,330
Change in fair value	(1,325)
Balance as of June 30, 2021	$	5

8

6. CAPITALIZED SOFTWARE DEVELOPMENT COSTS

Capitalized software development costs related to creating internally developed software and implementing software purchased for internal use are included in property and equipment in the accompanying condensed consolidated balance sheets. The Company capitalized software development costs of $0.9 million and $0.7 million during the three months ended June 30, 2021 and 2020, respectively, and $1.6 million and $1.4 million during the six months ended June 30, 2021 and 2020, respectively. Amortization expense related to capitalized internally developed software was $0.7 million and $0.4 million for the three months ended June 30, 2021 and 2020, respectively, and $1.3 million and $0.8 million for the six months ended June 30, 2021 and 2020, respectively, and is included in cost of revenue or general and administrative expense in the accompanying condensed consolidated statements of operations, depending upon the nature of the software development project. The net book value of capitalized internally developed software was $4.5 million and $4.2 million at June 30, 2021 and December 31, 2020, respectively.

7. LINE OF CREDIT

On August 5, 2020, the Company established a $25.0 million revolving credit facility with a commercial lender that is available for use until August 5, 2023. Proceeds from borrowings under the credit facility may be used for working capital and general corporate purposes, including acquisitions. Up to $10.0 million of the facility is available for letters of credit. Additionally, the Company may request increases to the facility, subject to the consent of the lender, provided that the aggregate amount of such increases during the term do not exceed $10.0 million. Amounts borrowed under the facility will bear interest equal to either a base rate plus 2.25% per annum or LIBOR plus 3.25% per annum. The Company will pay a fee on all outstanding letters of credit at a rate of 3.25% per annum. In addition, the Company will pay a quarterly fee at a rate of 0.50% per annum on the undrawn portion of the facility. As collateral for extension of credit under the facility, the Company granted security interests in substantially all of its assets and those of one of its subsidiaries. The agreement for the credit facility contains customary representations and warranties and subjects the Company to affirmative and negative covenants. As of June 30, 2021, the Company had not drawn on, or issued any letters of credit under, the credit facility.

8. REVENUE FROM CONTRACTS WITH CUSTOMERS

Revenue Recognition and Disaggregation of Revenue

The Company derives the majority of its revenue from subscription fees paid for access to and usage of its SaaS solutions for a specified contract term. A customer typically pays a recurring subscription fee based on a specified minimum amount of gross merchandise value, or GMV, or advertising spend that the customer expects to process through the Company's platform. Subscription fees may also include implementation fees such as launch assistance and training fees. The remaining portion of a customer's fee is variable and is based on a specified percentage of GMV or advertising spend processed through the Company's platform in excess of the customer's specified minimum GMV or advertising spend amount. In most cases, the specified percentage of excess GMV or advertising spend on which the variable fee is based is fixed and does not vary depending on the amount of the excess. Subscription fees are billed in advance of the subscription term and are due in accordance with contract terms, which generally provide for payment within 30 days. Variable fees are subject to the same payment terms, although they are generally billed at the end of the period in which they are incurred. The Company also generates revenue from its solutions that allow brands to direct potential consumers from their websites and digital marketing campaigns to authorized resellers. The majority of the Company's contracts have a one year term. The Company's contractual arrangements include performance, termination and cancellation provisions, but do not provide for refunds. Customers do not have the contractual right to take possession of the Company's software at any time. Sales taxes collected from customers and remitted to government authorities are excluded from revenue.

The Company's customers are categorized as follows:

Retailers. The Company generally categorizes a customer as a retailer if it primarily focuses on selling third-party products.

Brands. The Company generally categorizes a customer as a brand if it primarily focuses on selling its own proprietary products.

Other. Other is primarily comprised of strategic partnerships.

9

The following table summarizes revenue disaggregation by customer type for the three and six months ended June 30, 2021 and 2020 (in thousands):

	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Retailers	$	22,516	$	23,273	$	44,293	$	42,988
Brands	15,956		11,494		30,205		21,780
Other	3,071		2,676		6,211		4,707
	$	41,543	$	37,443	$	80,709	$	69,475

Contracts with Multiple Performance Obligations

Customers may elect to purchase a subscription to multiple modules, multiple modules with multiple service levels, or, for certain of the Company's solutions, multiple brands or geographies. The Company evaluates such contracts to determine whether the services to be provided are distinct and accordingly should be accounted for as separate performance obligations. If the Company determines that a contract has multiple performance obligations, the transaction price, which is the total price of the contract, is allocated to each performance obligation based on a relative standalone selling price method. The Company estimates standalone selling price based on observable prices in past transactions for which the product offering subject to the performance obligation has been sold separately. As the performance obligations are satisfied, revenue is recognized as discussed above.

Transaction Price Allocated to Future Performance Obligations

As the Company typically enters into contracts with customers for a twelve-month subscription term, a substantial majority of its performance obligations that have not yet been satisfied as of June 30, 2021 are part of a contract that has an original expected duration of one year or less. For contracts with an original expected duration of greater than one year, the aggregate transaction price allocated to the unsatisfied performance obligations was $32.7 million as of June 30, 2021, of which $21.0 million is expected to be recognized as revenue over the next twelve months.

Deferred Revenue

Deferred revenue generally represents the unearned portion of subscription fees. Deferred revenue is recorded when fees are invoiced in advance of performance. Deferred amounts are generally recognized within one year. Deferred revenue is included in the accompanying condensed consolidated balance sheets under "Total current liabilities," net of any long-term portion that is included in "Other long-term liabilities." The following table summarizes deferred revenue activity for the six months ended June 30, 2021 (in thousands):

	Balance, beginning of period		Net additions	Revenue recognized from deferred revenue	Balance, end of period
Deferred revenue	$	23,301	66,808	(62,292)	$	27,817

Of the $80.7 million of revenue recognized in the six months ended June 30, 2021, $19.2 million was included in deferred revenue at January 1, 2021.

Costs to Obtain Contracts

The Company capitalizes sales commissions and a portion of other incentive compensation costs that are directly related to obtaining customer contracts and that would not have been incurred if the contract had not been obtained. These costs are included in the accompanying condensed consolidated balance sheets and are classified as "Prepaid expenses and other current assets," net of any long-term portion that is included in "Deferred contract costs, net of current portion." As of June 30, 2021, $8.3 million was included in "Prepaid expenses and other current assets." Deferred contract costs are amortized to sales and marketing expense over the expected period of benefit, which the Company has determined to be five years based on the estimated customer relationship period. The following table summarizes deferred contract cost activity for the six months ended June 30, 2021 (in thousands):

	Balance, beginning of period		Additions	Amortized costs (1)	Balance, end of period
Deferred contract costs	$	21,333	7,441	(4,189)	$	24,585

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(1) Includes contract costs amortized to sales and marketing expense during the period and the impact from foreign currency exchange rate fluctuations.

9. STOCK-BASED COMPENSATION

In February 2020, the Company’s Compensation Committee implemented changes to the equity compensation program for the Company’s executive officers. Beginning in 2020, 50% of each executive's equity awards were granted in the form of performance-based vesting restricted stock units, or PSUs, that are eligible for vesting only if the Company achieves pre-defined targets set by the Compensation Committee for the Company’s combined year-over-year revenue growth and adjusted earnings before interest, tax, depreciation and amortization, or EBITDA, margin over a two-year measurement period, subject to the executive’s continued service with the Company. For any PSUs granted in 2020 to vest, revenue growth must be positive over the performance period. Vesting of the PSU awards is based on a sliding scale of actual performance against the pre-defined goals. The sliding scale ranges from zero vesting and forfeiture of the awards if the Company does not achieve the performance threshold, to an award of up to 150% and 200% of the target number of awards for fiscal 2020 and 2021 grants, respectively, if the pre-defined maximum performance is achieved. As soon as reasonably practicable after the completion of the performance period, the Compensation Committee will determine the level of attainment of the performance goal and if the performance threshold is achieved, on the second anniversary of the grant date, subject to the executive’s continued service as of that date, 50% of the earned PSU awards will vest and, on the third anniversary of the grant date, the remaining 50% of earned PSU awards will vest, subject to the executive’s continued service as of that date. The Committee may make adjustments to the manner in which the achievement is determined as it deems equitable and appropriate to exclude the effect of unusual, non-recurring or infrequent matters, transactions or events affecting the Company or its consolidated financial statements; changes in accounting principles, practices or policies or in tax laws or other laws or requirements; or other similar events, matters or changed circumstances. Each adjustment, if any, shall be made solely for the purpose of maintaining the intended economics of the award in light of changed circumstances to prevent the dilution or enlargement of the executive’s rights with respect to the PSUs. The fair value of the PSU awards is determined using the Company’s stock price on the grant date. These awards are equity classified and will be expensed over the requisite service period based on the extent to which achievement of the performance metrics is probable.

The Company recognizes stock-based compensation expense using the accelerated attribution method, net of estimated forfeitures, in which compensation cost for each vesting tranche in an award is recognized ratably from the service inception date to the vesting date for that tranche.

Stock-based compensation expense is included in the following line items in the accompanying condensed consolidated statements of operations for the three and six months ended June 30, 2021 and 2020 (in thousands):

	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Cost of revenue	$	264	$	238	$	496	$	557
Sales and marketing	996		777		1,816		1,517
Research and development	690		543		1,302		1,223
General and administrative	1,626		998		3,010		2,173
Total stock-based compensation expense	$	3,576	$	2,556	$	6,624	$	5,470

During the six months ended June 30, 2021, the Company granted the following share-based awards:

	Number of Shares Underlying Grant	Weighted Average Grant Date Fair Value
Restricted stock units	449,506	$	23.39
Performance stock units	71,932	$	23.88
Total share-based awards	521,438

10. NET INCOME PER SHARE

Basic net income per share is calculated by dividing net income by the weighted-average number of shares of common stock outstanding for the period. Diluted net income per share is calculated giving effect to all potentially dilutive shares of common stock, including stock options and restricted stock units. The dilutive effect of outstanding awards is reflected in

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diluted earnings per share by application of the treasury stock method.

The following table summarizes the calculation of basic and diluted net income per share (in thousands, except share and per share data):

	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Basic:
Net income	$	4,560	$	6,986	$	10,017	$	8,993
Weighted average common shares outstanding, basic	29,764,013		28,489,086		29,530,369		28,325,426
Basic net income per share	$	0.15	$	0.25	$	0.34	$	0.32
Diluted:
Net income	$	4,560	$	6,986	$	10,017	$	8,993
Weighted average common shares outstanding, basic	29,764,013		28,489,086		29,530,369		28,325,426
Dilutive effect of:
Stock options	572,474		259,774		604,491		154,854
Unvested restricted stock units	1,066,208		951,664		1,134,567		882,606
Weighted average common shares outstanding, diluted	31,402,695		29,700,524		31,269,427		29,362,886
Diluted net income per share	$	0.15	$	0.24	$	0.32	$	0.31

The following equity instruments have been excluded from the calculation of diluted net income per share because the effect is anti-dilutive:

	Three Months Ended June 30,		Six Months Ended June 30,
	2021	2020	2021	2020
Stock options	22,229	603,838	22,541	1,329,915
Restricted stock units	20,796	25,783	20,852	17,878

11. INCOME TAXES

At the end of each interim reporting period, the Company estimates its effective income tax rate expected to be applicable for the full year. This estimate is used to determine the income tax provision or benefit on a year-to-date basis and may change in subsequent interim periods.

The Company's effective tax rate was (12.0)% and 4.4% for the three months ended June 30, 2021 and 2020, respectively, and (4.1)% and 5.7% for the six months ended June 30, 2021 and 2020, respectively. The tax benefit and expense for each of the periods was based on U.S. federal, state, local and foreign income taxes. The Company’s effective tax rate for these periods is lower than the U.S. federal statutory rate of 21% primarily due to the utilization of operating loss carryforwards which are subject to a valuation allowance. As a result of uncertainties relating to the timing and sufficiency of future taxable income in certain tax jurisdictions in which the Company operates, the Company cannot recognize the tax benefit of operating loss carryforwards generated in those jurisdictions until the operating loss carryforwards are utilized. The decrease in the effective tax rate for the three and six months ended June 30, 2021 compared with the same periods in the prior year was primarily due to the revaluation of the Company's UK deferred tax assets resulting from the enactment of an increase in the UK statutory tax rate, as well as an increase in U.S. state income tax benefits resulting from tax deductions from stock-based compensation. Additionally, the decrease was partially due to an increase in forecasted income for the year ending December 31, 2021 that is not expected to result in a corresponding increase to income tax expense due to the tax benefit recognized from the utilization of operating loss carryforwards that are offset by a valuation allowance.

The American Rescue Plan Act, or ARP Act, was enacted on March 11, 2021. The ARP Act includes provisions on taxes, health care, unemployment benefits, direct payments, state and local funding and other issues. Included in the tax provisions was an expansion of the limitations on the deduction of excessive executive compensation. The Coronavirus, Aid, Relief and Economic Security Act, or CARES Act, was enacted on March 27, 2020.  The CARES Act includes both income tax and non-income tax measures to assist companies. Some of the key income tax-related provisions of the CARES Act include the elimination of the 80% limitation on certain net operating loss carryforwards and allowing net operating loss carrybacks, an increase to the interest expense deduction limit, passage of technical corrections to the Tax Cuts and Jobs Act of 2017, and

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acceleration of the Alternative Minimum Tax Credit refund. In addition to the income tax provisions, the ARP Act and CARES Act include non-income tax provisions, such as loan programs, penalty and interest-free deferral of certain tax payments, and payroll tax credits. The Company has decided not to apply for any of the loan programs in either Act. The Company is currently benefiting from penalty and interest-free tax payment deferral of the 2020 U.S. Social Security tax payments as provided in the CARES Act. The Company is also monitoring COVID-19 tax relief developments in U.S. states and foreign jurisdictions where the Company has operations.

The corporate tax changes in the ARP Act and CARES Act had an insignificant impact on the income tax provision for the three and six months ended June 30, 2021.

The Company recorded a valuation allowance against all of its U.S. deferred tax assets as of June 30, 2021. The Company intends to continue maintaining a full valuation allowance on its U.S. deferred tax assets until there is sufficient evidence to support the reversal of all or some portion of the allowance. However, given its current earnings and anticipated future earnings, there is a reasonable possibility that within the next 12 months, sufficient positive evidence may become available to allow it to reach a conclusion that a portion of the valuation allowance will no longer be needed. Release of the valuation allowance would result in the recognition of certain deferred tax assets and a decrease to income tax expense for the period the release is recorded. However, the Company is currently unable to determine the exact timing and amount of the valuation allowance release.

12. SEGMENT AND GEOGRAPHIC INFORMATION

Operating segments are defined as components of an enterprise for which discrete financial information is available that is evaluated regularly by the chief operating decision maker, or CODM, for purposes of allocating resources and evaluating financial performance. The Company's CODM reviews financial information presented on a consolidated basis for purposes of allocating resources and evaluating financial performance. As such, the Company's operations constitute a single operating segment and one reportable segment.

Substantially all assets were held in the United States during the six months ended June 30, 2021 and the year ended December 31, 2020. The Company categorizes domestic and international revenue from customers based on their billing address. The following table summarizes revenue by geography for the three and six months ended June 30, 2021 and 2020 (in thousands):

	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Domestic	$	29,471	$	28,522	$	57,982	$	52,436
International	12,072		8,921		22,727		17,039
Total revenue	$	41,543	$	37,443	$	80,709	$	69,475

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ITEM 2. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Certain statements contained in this Quarterly Report on Form 10-Q may constitute forward-looking statements within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. The words or phrases "would be," "will allow," "intends to," "will likely result," "are expected to," "will continue," "is anticipated," "estimate," "project," or similar expressions, or the negative of such words or phrases, are intended to identify "forward-looking statements." We have based these forward-looking statements on our current expectations and projections about future events. Because such statements include risks and uncertainties, actual results may differ materially from those expressed or implied by such forward-looking statements. These forward-looking statements are based upon information available to us as of the date of this Quarterly Report, and while we believe such information forms a reasonable basis for such statements, such information may be limited or incomplete, and our statements should not be read to indicate that we have conducted an exhaustive inquiry into, or review of, all potentially available relevant information. These statements are inherently uncertain and investors are cautioned not to unduly rely upon these statements. Factors that could cause or contribute to these differences include those below and elsewhere in this Quarterly Report on Form 10-Q, particularly in Part II – Item 1A, "Risk Factors," and our other filings with the Securities and Exchange Commission. Statements made herein are as of the date of the filing of this Form 10-Q with the Securities and Exchange Commission and should not be relied upon as of any subsequent date. Unless otherwise required by applicable law, we do not undertake, and we specifically disclaim, any obligation to update any forward-looking statements to reflect occurrences, developments, unanticipated events or circumstances after the date of such statement.

The following discussion and analysis of our financial condition and results of operations should be read in conjunction with our unaudited condensed consolidated financial statements and related notes that appear in Item 1 of this Quarterly Report on Form 10-Q and with our audited consolidated financial statements and related notes for the year ended December 31, 2020, which are included in our Annual Report on Form 10-K for fiscal 2020.

We are a leading multichannel commerce platform whose mission is to connect and optimize the world's commerce. For over two decades, we have helped brands and retailers worldwide improve their online performance by expanding sales channels, connecting with consumers across the entire buying cycle, optimizing their operations for peak performance and providing actionable analytics to improve competitiveness. More specifically, our platform allows our customers to manage their product listings, inventory availability, pricing optimization, search terms, orders and fulfillment, and other critical functions across these channels. Thousands of customers depend on us to securely power their e-commerce operations on hundreds of channels, including Amazon, eBay, Facebook, Google and Walmart. Our brand analytics solution helps leading global brands gain a competitive advantage on their e-commerce channels with actionable insights into how their products are performing across thousands of retailer websites and marketplaces. Our fulfillment solution makes it easier for customers to connect to their supply chain, which could include distributors, manufacturers and third-party logistics providers. We also offer solutions that allow brands to send their web visitors or digital marketing audiences directly to authorized resellers and to gain insight into consumer behavior. Overall, our platform delivers significant breadth, scalability and flexibility and facilitates billions of dollars in e-commerce transactions annually across the globe.

We serve customers across a wide range of industries and geographies. Our customers include the online businesses of brands and retailers, as well as advertising agencies that use our solutions on behalf of their clients.

EXECUTIVE OVERVIEW

FINANCIAL HIGHLIGHTS

•Total revenue of $41.5 million and $80.7 million for the three and six months ended June 30, 2021 increased 10.9% and 16.2%, respectively, from the comparable prior year periods;

•Revenue was comprised of 77.1% subscription revenue and 22.9% variable revenue for the three months ended June 30, 2021 compared with 68.6% subscription revenue and 31.4% variable revenue for the comparable prior year period;

•Revenue was comprised of 77.2% subscription revenue and 22.8% variable revenue for the six months ended June 30, 2021 compared with 74.1% subscription revenue and 25.9% variable revenue for the comparable prior year period;

•Revenue from our brands customers represented 38.4% and 37.4% of total revenue for the three and six months ended June 30, 2021, respectively, up from 30.7% and 31.3% of total revenue for the comparable prior year periods;

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•Revenue derived from customers located outside of the United States as a percentage of total revenue was 29.1% and 28.2% for the three and six months ended June 30, 2021, respectively, compared with 23.8% and 24.5% for the comparable prior year periods;

•Gross margin of 77.1% and 77.8% for the three and six months ended June 30, 2021, respectively, declined by 410 and 190 basis points, respectively, compared with 81.2% and 79.7% for the comparable prior year periods;

•Operating margin of 9.9% and 12.2% for the three and six months ended June 30, 2021, respectively, declined from 19.2% and 13.4% for the comparable prior year periods;

•Net income was $4.6 million and $10.0 million for the three and six months ended June 30, 2021, respectively, compared with net income of $7.0 million and $9.0 million for the comparable prior year periods;

•Adjusted EBITDA, a non-GAAP measure, was $9.3 million and $18.5 million for the three and six months ended June 30, 2021, respectively, compared with adjusted EBITDA of $11.6 million and $18.1 million for the comparable prior year periods;

•Cash and cash equivalents were $90.4 million at June 30, 2021 compared with $71.5 million at December 31, 2020;

•Operating cash flow was $17.6 million for the six months ended June 30, 2021 compared with $13.5 million for the comparable prior year period; and

•Free cash flow, a non-GAAP measure, was $15.5 million for the six months ended June 30, 2021 compared with $11.5 million for the comparable prior year period.

EFFECTS OF COVID-19 ON OUR BUSINESS

COVID-19 has affected e-commerce in different ways and presents our business with both opportunities and risks. In general, the closing of many physical retail stores and the stay-at-home orders issued by many jurisdictions have driven a substantial shift in commerce to online channels like Amazon and Walmart. Since the first quarter of 2020, our business has been positively affected by a substantial increase in e-commerce volumes, which drove an increase in gross merchandise value, or GMV, processed through our platform, and benefited our variable revenue. How long, and to what extent, this level of higher GMV can continue is very difficult to forecast. We believe that the heightened GMV levels we have seen are likely to dissipate somewhat over time as COVID-19 vaccinations are administered to the overall population, new COVID-19 cases sufficiently diminish, retail stores reopen and stay-at-home orders ease. We also believe that some level of increased e-commerce may become permanent as customers become more regular online shoppers, which would increase demand for solutions, like ours, that help brands and retailers continue to shift toward digital channels.

COVID-19 has had a substantial impact on employment levels and the overall global economy. Governments around the world, including the U.S. Federal government and European Union, have enacted historic fiscal and monetary stimulus programs in an effort to mitigate the economic impact of COVID-19, and we believe these programs have helped support consumer spending. Whether and when, and to what extent, future stimulus programs are enacted is difficult to predict. Therefore, the risk of continued global economic distress remains high and may impact consumer demand and, hence, e-commerce volumes. How long this economic climate lasts, and whether or not the impact on consumer demand is more than offset by the shift to online shopping that we have seen since March 2020, is not knowable at this point.

For all of these reasons, it has remained difficult to forecast our revenue and profitability for future periods, especially as continued outbreaks of COVID-19 could disrupt our operations and/or those of our customers. However, we believe we currently have sufficient liquidity and that our business model, which is substantially based on subscription revenues, positions us to continue to manage through the challenges presented by COVID-19.

TRENDS IN OUR BUSINESS

The following trends have contributed to the results of our consolidated operations, and we anticipate that they will continue to affect our future results:

•Growth in Online Shopping. Consumers continue to move more of their spending from offline to online. The continuing shift to online shopping and overall growth has contributed to our historical growth and we expect that this online shift will continue to benefit our business. Global efforts to implement social distancing, including stay-at-home orders and similar mobility and gathering restrictions, due to the COVID-19 pandemic, have increased e-commerce as consumers have increasingly turned to online purchasing for many products they would have purchased at brick and mortar stores. However, it is unclear to what degree this recent shift in favor of e-commerce will continue once the public health impacts of the COVID-19 pandemic have begun to subside.

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•Product Offering Expansion. As online shopping evolves, we continue to expand our product offerings to reflect the needs of companies seeking to attract consumers. We continue to enhance our product offerings by increasing online shopping channel integrations, including marketplace and first-party retail programs, and providing capabilities that allow brands and retailers to be more competitive. This includes support for advertising, advanced algorithmic repricing, machine learning-based demand forecasting, analytics capabilities, fulfillment features and user experience.

•Channel Expansion. We have experienced substantial growth in GMV on our platform from large channels like Zalando, Target Plus and Shopify, as well as numerous smaller marketplaces that we refer to collectively as our long tail of marketplaces. Many of our brands customers see a significant opportunity in expanding their reach to more consumers via global channel expansion. We implemented a plan at the beginning of 2021 to add at least 80 additional channel connections across the globe over an 18 month period to help our customers with this opportunity.

•Growth in Mobile Usage. We believe the shift toward mobile commerce will increasingly favor aggregators such as Amazon, eBay, Google and Walmart, all of which are focal points of our platform. These systems understand the identity of the buyer, helping to reduce friction in the mobile commerce process, while offering a wide selection of merchandise in a single location. We believe that the growth in mobile commerce may result in increased revenue for us.

•Evolving Fulfillment Landscape. Consumers have been conditioned to expect fast, efficient delivery of products. We believe that determining and executing on a strategy to more expeditiously receive, process and deliver online orders, which we refer to collectively as fulfillment, is critical to success for online sellers. Therefore, it will be increasingly important for us to facilitate and optimize fulfillment services on behalf of our customers, which in turn may result in additional research and development investment.

•Focus on Employees. We strive to provide competitive compensation and benefits programs to help attract and retain employees who are focused on facilitating the success of our customers. We implemented a COVID-19 global work-from-home policy beginning in March 2020 to help protect our employees and support our communities' efforts to slow the transmission of COVID-19. This transition went smoothly, as our workforce is globally distributed and employees have the equipment they need to work from home, including global video communications systems. In May 2021, we implemented a formal global flexible work policy that provides our employees the ability to determine whether they will continue to work from home or from the office, as our offices around the world reopen. We are not dependent on our physical office locations or travel for our business operations.

•Seasonality. Our revenue fluctuates as a result of seasonal variations in our business, principally due to the peak consumer demand and related increased volume of our customers' GMV during the year-end holiday season. As a result, we have historically had higher revenue in our fourth quarter than other quarters due to increased GMV processed through our platform, resulting in higher variable fees. Since the second quarter of 2020, we have seen an increase in GMV processed through our platform, which does not follow the typical seasonal variations in our business, and resulted in higher than normal variable revenue. Refer to "Revenue" below for additional information.

OPPORTUNITIES AND RISKS

•Brands. We believe the digital transformation to e-commerce has changed the way brands interact with their customers, which is why we have identified that growing our brands business represents a significant strategic opportunity for us. We generally categorize a customer as a brand if it primarily focuses on selling its own proprietary products. Brands tend to have longer customer life cycles, stronger financial stability and overall better unit economics than retailers, which we consider to be companies focused primarily on selling third-party products. Brands also offer increased expansion opportunities to grow their e-commerce business through our platform; however they tend to have longer sales cycles. To help drive our future growth, we have made significant investments in our sales force, modified our sales compensation plans and allocated resources focused on growing our customer base of brands. In 2021, we plan to continue to invest in our sales organization and also further invest in our services and R&D organizations, which we believe will improve customer and revenue retention and contribute to expanding the relationships we already have with our current brands customers.

•Dynamic E-commerce Landscape. We need to continue to innovate in the face of a rapidly changing e-commerce landscape if we are to remain competitive.

•Strategic Partnerships. Our business development team's mission is to expand our sales and market opportunities through strategic partner relationships. We plan to continue to invest in initiatives to expand our strategic partnership base to further enhance our offerings for customers and to help support our indirect sales channel efforts. The goal of

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these strategic partnerships is to further improve the value of our platform for our customers and, when possible, provide us opportunities for incremental revenue streams.

•Increasing Complexity of E-commerce. Although e-commerce continues to expand as brands and retailers continue to increase their online sales, it is also becoming more complex due to the hundreds of channels available to brands and retailers and the rapid pace of change and innovation across those channels. In order to gain consumers' attention in a more crowded and competitive online marketplace, an increasing number of brands and retailers sell their merchandise through multiple online channels, each with its own rules, requirements and specifications. In particular, third-party marketplaces are an increasingly important driver of growth for a number of brands and large online retailers. As a result, we need to continue to support multiple channels in a variety of geographies in order to support our targeted revenue growth, and we are making strategic investments in 2021 focused on channel expansion.

•Global Growth in E-commerce. We believe the growth in e-commerce globally presents an opportunity for brands and retailers to engage in international sales. However, country-specific marketplaces are often a market share leader in their regions, as is the case for Zalando in Europe, for example. In order to help our customers capitalize on this potential market opportunity, and to address our customers' needs with respect to cross-border trade, we intend to continue to invest in our international operations. Doing business overseas involves substantial challenges, including management attention and resources needed to adapt to multiple languages, cultures, laws and commercial infrastructure, as further described in this report under the caption "Risks Related to our International Operations."

Our senior management continuously focuses on these and other trends and challenges, and we believe that our culture of innovation and our history of growth and expansion will contribute to the success of our business. We cannot, however, assure you that we will be successful in addressing and managing the many challenges and risks that we face.

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RESULTS OF OPERATIONS

The following tables set forth our condensed consolidated statement of operations data and such data expressed as a percentage of revenues for each of the periods indicated.

	Three Months Ended June 30,				Six Months Ended June 30,				Period-to-Period Change				Period-to-Period Change
	2021		2020		2021		2020		Q2 2021 to Q2 2020				YTD 2021 to YTD 2020
(dollars in thousands)
Revenue	$	41,543	$	37,443	$	80,709	$	69,475	$	4,100	10.9	%	$	11,234	16.2	%
Cost of revenue	9,533		7,053		17,941		14,116		2,480		35.2		3,825		27.1
Gross profit	32,010		30,390		62,768		55,359		1,620		5.3		7,409		13.4
Operating expenses:
Sales and marketing	15,159		12,619		29,791		24,959		2,540		20.1		4,832		19.4
Research and development	5,908		4,543		11,435		9,344		1,365		30.0		2,091		22.4
General and administrative	6,835		6,033		11,717		11,768		802		13.3		(51)		(0.4)
Total operating expenses	27,902		23,195		52,943		46,071		4,707		20.3		6,872		14.9
Income from operations	4,108		7,195		9,825		9,288		(3,087)		(42.9)		537		5.8
Other (expense) income:
Interest (expense) income, net	(33)		85		(66)		211		(118)		*		(277)		*
Other (expense) income, net	(5)		31		(135)		39		(36)		*		(174)		*
Total other (expense) income	(38)		116		(201)		250		(154)		*		(451)		*
Income before income taxes	4,070		7,311		9,624		9,538		(3,241)		(44.3)		86		0.9
Income tax (benefit) expense	(490)		325		(393)		545		(815)		*		(938)		*
Net income	$	4,560	$	6,986	$	10,017	$	8,993	$	(2,426)	(34.7)	%	$	1,024	11.4	%

* Not meaningful

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	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
	(as a percentage of revenue)				(as a percentage of revenue)
Revenue	100.0	%	100.0	%	100.0	%	100.0	%
Cost of revenue	22.9		18.8		22.2		20.3
Gross profit	77.1		81.2		77.8		79.7
Operating expenses:
Sales and marketing	36.5		33.7		36.9		35.9
Research and development	14.2		12.1		14.2		13.4
General and administrative	16.5		16.1		14.5		16.9
Total operating expenses	67.2		61.9		65.6		66.3
Income from operations	9.9		19.2		12.2		13.4
Other (expense) income:
Interest (expense) income, net	(0.1)		0.2		(0.1)		0.3
Other (expense) income, net	0.0		0.1		(0.2)		0.1
Total other (expense) income	(0.1)		0.3		(0.2)		0.4
Income before income taxes	9.8		19.5		11.9		13.7
Income tax (benefit) expense	(1.2)		0.9		(0.5)		0.8
Net income	11.0	%	18.7	%	12.4	%	12.9	%

Depreciation and Amortization

Depreciation and amortization expense is included in the following line items in the accompanying unaudited condensed consolidated statements of operations for the three and six months ended June 30, 2021 and 2020 (in thousands):

	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Cost of revenue	$	1,107	$	1,029	$	2,309	$	2,005
Sales and marketing	112		156		271		311
Research and development	44		64		107		134
General and administrative	384		273		792		550
Total depreciation and amortization expense	$	1,647	$	1,522	$	3,479	$	3,000

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REVENUE

We derive the majority of our revenue from subscription fees paid to us by our customers for access to and usage of our SaaS solutions for a specified contract term, which is typically one year. A customer typically pays a recurring subscription fee based on a specified minimum amount of GMV or advertising spend that the customer expects to process through our platform. Subscription fees may also include implementation fees such as launch assistance and training fees. The remaining portion of a customer's fee is variable and is based on a specified percentage of GMV or advertising spend processed through our platform in excess of the customer's specified minimum GMV or advertising spend amount. In most cases, the specified percentage of excess GMV or advertising spend on which the variable fee is based is fixed and does not vary depending on the amount of the excess.

Because our customer contracts generally contain both subscription and variable pricing components, changes in GMV between periods do not translate directly or linearly into changes in our revenue. We use customized pricing structures for each of our customers depending upon the individual situation of the customer. For example, some customers may commit to a higher specified minimum GMV amount per month in exchange for a lower percentage fee on that committed GMV. In addition, the percentage fee assessed on the variable GMV in excess of the committed minimum for each customer is typically higher than the fee on the committed portion. As a result, our overall revenue could increase or decrease even without any change in overall GMV between periods, depending on which customers generated the GMV. In addition, changes in GMV from month to month for any individual customer that are below the specified minimum amount would have no effect on our revenue from that customer, and each customer may alternate between being over the committed amount or under it from month to month. For these reasons, while GMV is an important qualitative and long-term directional indicator, we do not regard it as a useful quantitative measurement of our historic revenues or as a predictor of future revenues.

We recognize subscription fees and implementation fees ratably over the contract period beginning on the date the customer has access to the software. In determining the amount of revenue to be recognized, we apply the following steps:

•Identify the promised services in the contract;

•Determine whether the promised services are performance obligations, including whether they are distinct in the context of the contract;

•Determine the transaction price;

•Allocate the transaction price to the performance obligations based on estimated selling prices; and

•Recognize revenue as we satisfy each performance obligation.

We generally invoice our customers for subscription fees in advance, in monthly, quarterly, semi-annual or annual installments. We generally also invoice our customers for any implementation fees at the inception of the arrangement. Fees that have been invoiced in advance are initially recorded as deferred revenue and are generally recognized ratably over the contract term.

In general, we invoice and recognize variable revenue in the period in which the related GMV or advertising spend is processed.

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Our customers are categorized as follows:

•Retailers. We generally categorize a customer as a retailer if it primarily focuses on selling third-party products.

•Brands. We generally categorize a customer as a brand if it primarily focuses on selling its own proprietary products.

•Other. Other is primarily comprised of strategic partnerships.

Comparison of Q2 2021 to Q2 2020

Revenue increased by 10.9%, or $4.1 million, to $41.5 million for the three months ended June 30, 2021 compared with $37.4 million for the prior year period. The change was primarily due to a $6.3 million increase in subscription revenue compared to the prior year period, driven by strong net bookings, particularly from brands customers. Revenue from our brands customers increased 38.8%, or $4.5 million, compared to the prior year period, driven by an increase in new customers and expansions with existing customers, as well as improved customer retention. Variable revenue decreased $2.2 million compared to the prior year period, as the closing of physical retail stores and the stay-at home orders issued by many jurisdictions in the first and second quarter of 2020 drove a substantial shift in consumer buying behavior, which caused many of our customers to exceed their contractually fixed minimum GMV levels in the prior year period but not in the current year.

Comparison of YTD 2021 to YTD 2020

Revenue increased by 16.2%, or $11.2 million, to $80.7 million for the six months ended June 30, 2021 compared with $69.5 million for the prior year period. The change was primarily due to a $10.8 million increase in subscription revenue compared to the prior year period, driven by strong net bookings, particularly from brands customers. Revenue from our brands customers increased 38.7%, or $8.4 million, compared to the prior year period, driven by an increase in new customers and expansions with existing customers, as well as improved customer retention.

COST OF REVENUE

Cost of revenue primarily consists of:

•Salaries and personnel-related costs for employees providing services to our customers and supporting our platform infrastructure, including benefits, bonuses and stock-based compensation;

•Co-location facility costs for our data centers;

•Infrastructure maintenance costs; and

•Fees we pay to credit card vendors in connection with our customers' payments to us.

Comparison of Q2 2021 to Q2 2020

Cost of revenue increased by 35.2%, or $2.5 million, to $9.5 million for the three months ended June 30, 2021 compared with $7.1 million for the prior year period. The change was comprised primarily of increases of:

•$1.5 million in compensation and employee-related costs due to an increase in headcount, as we continue to invest in resources to support the growth of our business, as well as an increase in quarterly bonuses earned from strong net bookings performance;

•$0.4 million in contractor costs primarily to support our international services team; and

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•$0.4 million in software and website maintenance costs to support the growth of our business.

Comparison of YTD 2021 to YTD 2020

Cost of revenue increased by 27.1%, or $3.8 million, to $17.9 million for the six months ended June 30, 2021 compared with $14.1 million for the prior year period. The change was comprised primarily of increases of:

•$2.5 million in compensation and employee-related costs due to an increase in headcount, as we continue to invest in resources to support the growth of our business, as well as an increase in quarterly bonuses earned from strong net bookings performance;

•$0.5 million in contractor costs primarily to support our international services team;

•$0.4 million in software and website maintenance costs to support the growth of our business; and

•$0.3 million in depreciation due to an increase in amortization of capitalized software development costs.

OPERATING EXPENSES

SALES AND MARKETING EXPENSE

Sales and marketing expense consists primarily of:

•Salaries and personnel-related costs for our sales and marketing employees, including benefits, bonuses and stock-based compensation;

•Amortization of capitalized sales commissions and related incentive payments over their expected term of benefit;

•Marketing, advertising and promotional event programs; and

•Corporate communications.

Comparison of Q2 2021 to Q2 2020

Sales and marketing expense increased by 20.1%, or $2.5 million, to $15.2 million for the three months ended June 30, 2021 compared with $12.6 million for the prior year period. The change was comprised primarily of increases of:

•$2.3 million in compensation and employee-related costs due to an increase in headcount, as we continue to invest in resources to support the growth of our business, as well as an increase in amortization of deferred contract costs resulting from higher sales commissions driven by strong net bookings performance; and

•$0.2 million in marketing and advertising, with the prior year having reduced spend in response to the COVID-19 pandemic.

Comparison of YTD 2021 to YTD 2020

Sales and marketing expense increased by 19.4%, or $4.8 million, to $29.8 million for the six months ended June 30, 2021 compared with $25.0 million for the prior year period. The change was comprised primarily of increases (decreases) of:

•$4.6 million in compensation and employee-related costs due to an increase in headcount, as we continue to invest in resources to support the growth of our business, as well as an increase in amortization of deferred contract costs resulting from higher sales commissions driven by strong net bookings performance; and

•$0.5 million in marketing and advertising, with the prior year having reduced spend in response to the COVID-19 pandemic; partially offset by

•$(0.3) million in our promotional event programs and travel, primarily due to restrictions as a response to the COVID-19 pandemic.

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RESEARCH AND DEVELOPMENT EXPENSE

Research and development expense consists primarily of:

•Salaries and personnel-related costs for our research and development employees, including benefits, bonuses and stock-based compensation;

•Costs related to the development, quality assurance and testing of new technology and enhancement of our existing platform technology; and

•Consulting expenses.

Comparison of Q2 2021 to Q2 2020

Research and development expense increased by 30.0%, or $1.4 million, to $5.9 million for the three months ended June 30, 2021 compared with $4.5 million for the prior year period. The change was comprised primarily of higher compensation and employee-related costs due to an increase in headcount driven by resources to support the growth of our business and our investment in channel expansion, employees from our acquisition of Blueboard, a private limited company organized under the laws of France ("BlueBoard"), in July 2020, as well as an increase in quarterly bonuses earned from strong net bookings performance.

Comparison of YTD 2021 to YTD 2020

Research and development expense increased by 22.4%, or $2.1 million, to $11.4 million for the six months ended June 30, 2021 compared with $9.3 million for the prior year period. The change was comprised primarily of higher compensation and employee-related costs due to an increase in headcount driven by resources to support the growth of our business and our investment in channel expansion, employees from our acquisition of BlueBoard in July 2020, as well as an increase in quarterly bonuses earned from strong net bookings performance.

GENERAL AND ADMINISTRATIVE EXPENSE

General and administrative expense consists primarily of:

•Salaries and personnel-related costs for administrative, finance and accounting, information systems, legal and human resource employees, including benefits, bonuses and stock-based compensation;

•Consulting and professional fees;

•Insurance;

•Bad debt expense;

•Costs associated with SEC compliance, including with the Sarbanes-Oxley Act and other regulations governing public companies; and

•Transaction related costs.

Comparison of Q2 2021 to Q2 2020

General and administrative expense increased by 13.3%, or $0.8 million, to $6.8 million for the three months ended June 30, 2021 compared with $6.0 million for the prior year period. The change was comprised primarily of higher compensation and employee related costs, including stock-based compensation, due to an increase in headcount, as we continue to invest in resources to support the growth of our business.

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Comparison of YTD 2021 to YTD 2020

General and administrative expense decreased by 0.4%, or $0.1 million, to $11.7 million for the six months ended June 30, 2021 compared with $11.8 million for the prior year period. The change was comprised primarily of (decreases) increases of:

•$(1.3) million in general and administrative costs due to a decrease in the fair value of acquisition-related contingent consideration; and

•$(0.5) million from a decrease in bad debt expense due to improved cash collections; partially offset by

•$1.4 million in compensation and employee related costs, including stock-based compensation, due to an increase in headcount, as we continue to invest in resources to support the growth of our business; and

•$0.3 million in amortization of intangible assets driven by our acquisition of BlueBoard in July 2020.

ADJUSTED EBITDA

Adjusted EBITDA represents our earnings before interest expense (income), income tax (benefit) expense and depreciation and amortization, adjusted to eliminate stock-based compensation expense, which is a non-cash item. For 2021 only, adjusted EBITDA excluded the change in fair value of acquisition-related contingent consideration (refer to Note 5 to our condensed consolidated financial statements included in this report for additional information on contingent consideration). For 2020 only, adjusted EBITDA included transaction costs associated with our July 2020 acquisition of BlueBoard.

We believe that adjusted EBITDA provides useful information to management and others in understanding and evaluating our operating results. However, adjusted EBITDA is not a measure calculated in accordance with U.S. GAAP and should not be considered as an alternative to any measure of financial performance calculated and presented in accordance with U.S. GAAP. In addition, adjusted EBITDA may not be comparable to similarly titled measures of other companies because other companies may not calculate adjusted EBITDA in the same manner that we do.

Our use of adjusted EBITDA has limitations as an analytical tool, and you should not consider it in isolation or as a substitute for analysis of our results as reported under U.S. GAAP. Some of these limitations are:

•although depreciation and amortization are non-cash charges, the assets being depreciated and amortized may have to be replaced in the future and adjusted EBITDA does not reflect cash capital expenditure requirements for such replacements or for new capital expenditure requirements;

•adjusted EBITDA does not reflect changes in, or cash requirements for, our working capital needs;

•adjusted EBITDA does not reflect the potentially dilutive impact of equity-based compensation;

•adjusted EBITDA does not reflect interest or income tax payments that may represent a reduction in cash available to us; and

•other companies, including companies in our industry, may calculate adjusted EBITDA differently, which reduces its usefulness as a comparative measure.

Because of these and other limitations, you should consider adjusted EBITDA together with U.S. GAAP-based financial performance measures, including various cash flow metrics, net income and our other U.S. GAAP results. The following table presents a reconciliation of net income to adjusted EBITDA for each of the periods indicated (in thousands):

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	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Net income	$	4,560	$	6,986	$	10,017	$	8,993
Adjustments:
Interest expense (income), net	33		(85)		66		(211)
Income tax (benefit) expense	(490)		325		(393)		545
Depreciation and amortization expense	1,647		1,522		3,479		3,000
Total adjustments	1,190		1,762		3,152		3,334
EBITDA	5,750		8,748		13,169		12,327
Stock-based compensation expense	3,576		2,556		6,624		5,470
Contingent consideration fair value adjustment	—		—		(1,313)		—
Transaction costs in connection with acquisition	—		265		—		265
Adjusted EBITDA	$	9,326	$	11,569	$	18,480	$	18,062

GROSS AND OPERATING MARGINS

    

Comparison of Q2 2021 to Q2 2020

Gross margin declined by 410 basis points to 77.1% during the three months ended June 30, 2021 compared with 81.2% for the prior year period as a result of the increase in cost of revenue of 35.2% noted above, which exceeded the 10.9% increase in revenue.

Operating margin declined by 930 basis points to 9.9% during the three months ended June 30, 2021 compared with 19.2% for the prior year period due to increases in operating expenses and cost of revenue of 20.3% and 35.2%, respectively, primarily as a result of an increase in compensation and employee-related costs driven by additional headcount as we invest in resources to support growth of our business. These increases exceeded the 10.9% increase in revenue.

Comparison of YTD 2021 to YTD 2020

Gross margin declined by 190 basis points to 77.8% during the six months ended June 30, 2021 compared with 79.7% for the prior year period as a result of the increase in cost of revenue of 27.1% noted above, which exceeded the 16.2% increase in revenue.

Operating margin declined by 120 basis points to 12.2% during the six months ended June 30, 2021 compared with 13.4% for the prior year period due to increases in operating expenses and cost of revenue of 14.9% and 27.1%, respectively, primarily as a result of an increase in compensation and employee-related costs driven by additional headcount as we invest in resources to support growth of our business. These increases exceeded the 16.2% increase in revenue.

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CRITICAL ACCOUNTING POLICIES AND ESTIMATES

Our management's discussion and analysis of our financial condition and results of operations is based on our condensed consolidated financial statements, which have been prepared in accordance with U.S. GAAP. The preparation of these condensed consolidated financial statements requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the condensed consolidated financial statements and the reported amounts of revenue and expenses during the reported period. In accordance with U.S. GAAP, we base our estimates on historical experience and on various other assumptions that we believe are reasonable under the circumstances. Actual results may differ from these estimates under different assumptions or conditions, and to the extent that there are differences between our estimates and actual results, our future financial statement presentation, financial condition, results of operations and cash flows will be affected. There were no material changes to our critical accounting policies and use of estimates, which are disclosed in our audited consolidated financial statements for the year ended December 31, 2020 included in our Annual Report on Form 10-K for fiscal 2020.

Recent Accounting Pronouncements

Refer to Note 2, "Significant Accounting Policies," to our condensed consolidated financial statements included in this report for a full description of recent accounting pronouncements.

LIQUIDITY AND CAPITAL RESOURCES

We derive our liquidity and operating capital primarily from cash flows from operations. Based on our current level of operations and anticipated growth, we believe our future cash flows from operating activities and our existing cash balances will be sufficient to meet our cash requirements for at least the next twelve months.

The foregoing estimate does not give effect to any potential amounts that we may draw under our credit facility, or Credit Facility, with HSBC Bank, or HSBC, that we entered into in August 2020 and which is described in more detail below.

CASH FLOWS

Free Cash Flow

We view free cash flow as an important financial metric as it demonstrates our ability to generate cash and can allow us to pursue opportunities that enhance shareholder value. Free cash flow is a non-GAAP financial measure that should be considered in addition to, not as a substitute for, measures of our financial performance prepared in accordance with U.S. GAAP. The following table presents a reconciliation of cash provided by operating activities, the most directly comparable U.S. GAAP measure, to free cash flow for each of the periods indicated (in thousands):

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	Six Months Ended June 30,
	2021		2020
Cash and cash equivalents provided by operating activities	$	17,586	$	13,456
Less: Purchases of property and equipment	(494)		(580)
Less: Payment of capitalized software development costs	(1,631)		(1,407)
Free cash flow	$	15,461	$	11,469

Free cash flow increased by $4.0 million to $15.5 million for the six months ended June 30, 2021 compared with $11.5 million for the prior year period. The increase in free cash flow was primarily a result of revenue growth during the six months ended June 30, 2021 as compared with the prior year period, improved cash collections and changes in assets and liabilities, which are further described below.

Operating activities cash flows are largely driven by:

•The amount of cash we invest in personnel and infrastructure to support the anticipated growth of our business;

•The amount and timing of customer payments; and

•The seasonality of our business, as noted above, which results in variations in the timing of invoicing and the receipt of payments from our customers.

Investing activities cash flows are largely driven by:

•Acquisitions, net of cash acquired;

•Capitalized expenditures to create internally developed software and implement software purchased for internal use; and

•Purchases of property and equipment to support the expansion of our infrastructure.

Financing activities cash flows are largely driven by:

•Proceeds from the exercises of stock options;

•Tax withholdings related to the net-share settlement of restricted stock units;

•Payments on finance lease obligations; and

•Payment of financing costs.

YTD 2021

Operating Activities

Our cash provided by operating activities of $17.6 million consisted of net income of $10.0 million adjusted for non-cash items totaling $7.5 million, which consisted of stock-based compensation expense, depreciation and amortization expense, bad debt expense and other non-cash items, including the contingent consideration fair value adjustment, and cash increases of $0.1 million from changes in assets and liabilities.

The net increase in cash of $0.1 million resulting from changes in assets and liabilities primarily consisted of:

•a $4.4 million increase in deferred revenue as a result of an increase in net bookings during the period. This increase in cash was partially offset by decreases in cash due to:

•a $3.3 million increase in deferred contract costs consisting of sales commissions and a portion of other incentive compensation that is deferred and amortized to expense over the expected period of benefit;

•a $0.5 million increase in accounts receivable driven by strong net bookings performance during the period;

•a $0.3 million increase in prepaid expenses and other assets driven by the timing of payments to our vendors during the period; and

•a $0.2 million decrease in accrued expenses and accounts payable primarily due to the payment of bonuses earned in the prior year.

Investing Activities

Our cash used in investing activities of $2.1 million consisted of:

•$1.6 million of capitalized software development costs; and

•$0.5 million of capital expenditures primarily related to the purchase of computer equipment.

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Financing Activities

Our cash provided by financing activities of $3.4 million consisted of:

•$3.7 million in cash received upon the exercise of stock options; partially offset by

•$0.3 million used for the payment of taxes related to the net-share settlement of restricted stock units.

YTD 2020

Operating Activities

Our cash provided by operating activities of $13.5 million consisted of net income of $9.0 million adjusted for non-cash items totaling $9.1 million, which consisted of stock-based compensation expense, depreciation and amortization expense, bad debt expense and other non-cash items, and uses of cash of $4.6 million from changes in assets and liabilities.

The net decrease in cash of $4.6 million resulting from changes in assets and liabilities primarily consisted of:

•a $2.4 million increase in accounts receivable as a result of the increase in transaction volume and variable revenue during the period;

•a $1.6 million decrease in deferred revenue as a result of an increase in annual contracts billed on a monthly basis, as well as the timing of revenue recognition for managed-service contracts;

•a $0.9 million increase in prepaid expenses and other assets driven by the timing of payments to our vendors during the period; and

•a $0.9 million increase in deferred contract costs consisting of sales commissions and a portion of other incentive compensation that is deferred and amortized to expense over the expected period of benefit. These decreases in cash were partially offset by increases in cash due to:

•a $1.2 million increase in accrued expenses and accounts payable driven by accrued bonuses and the deferral of certain payroll taxes associated with COVID-19 pandemic relief.

Investing Activities

Our cash used in investing activities of $2.0 million consisted of:

•$1.4 million of capitalized software development costs; and

•$0.6 million of capital expenditures primarily related to the purchase of computer equipment.

Financing Activities

Our cash provided by financing activities of $0.7 million consisted of:

•$2.1 million in cash received upon the exercise of stock options; partially offset by

•$1.4 million used for the repayment of finance leases.

CREDIT FACILITY

On August 5, 2020, we established the Credit Facility with HSBC under which we may borrow up to $25 million. We may use proceeds from borrowings under the Credit Facility for working capital and general corporate purposes, including acquisitions, and up to $10 million is available for letters of credit. We may also request increases in the amount of the Credit Facility, with such increases not to exceed $10 million in the aggregate, subject to HSBC’s consent. As of the date of this report, we have not drawn on, or issued any letters of credit under, the Credit Facility. The Credit Facility matures in August 2023.

Any borrowings under the Credit Facility will bear interest at a per annum interest rate based on a base rate plus 2.25% or LIBOR plus 3.25%. The base rate will equal the highest of (a) the prime rate as publicly announced by HSBC, (b) the sum of (i) the weighted average of the rates on overnight federal funds transactions with members of the Federal Reserve System plus (ii) 0.50%, and (c) the LIBOR rate plus 1.00% per annum, with a floor of 1.50%. The LIBOR rate will be based on London interbank offered rates published by ICE Benchmark Administration Limited for the applicable interest period, with a floor of 0.50%. We will pay a fee on all outstanding letters of credit at a rate of 3.25% per annum. We will pay HSBC a commitment fee on the undrawn portion of the facility at a rate per annum equal to 0.50%. We may terminate the Credit Facility, or prepay any borrowings, at any time in our discretion without premium or penalty.

The credit agreement for the Credit Facility, or the Credit Agreement, contains affirmative and negative covenants. In addition, under the Credit Agreement, we may not permit the ratio of our outstanding indebtedness to consolidated EBITDA to

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exceed 2.50 to 1.00 as of the last day of any fiscal quarter. We also may not permit the ratio of our consolidated EBITDA (minus maintenance-related capital expenditures paid in cash and minus dividends, distributions and stock repurchases paid in cash) to consolidated interest expense to be less than 3.00 to 1.00 for any period of four consecutive fiscal quarters.

The Credit Agreement contains customary events of default. Upon the occurrence and during the continuance of an event of default, HSBC may terminate the commitments under the Credit Facility and declare the outstanding advances and all other obligations under the Credit Facility immediately due and payable.

Off-Balance Sheet Arrangements

As of June 30, 2021, we did not have any off-balance sheet arrangements, as defined in Item 303(a)(4)(ii) of Securities and Exchange Commission, or SEC, Regulation S-K.

ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Market risk is the risk of loss to future earnings, values or future cash flows that may result from changes in the price of a financial instrument. The value of a financial instrument may change as a result of changes in interest rates, exchange rates, commodity prices, equity prices and other market changes. We are exposed to market risk related to changes in foreign currency exchange rates. Although we have not drawn on our Credit Facility, we may do so in the future which may subject us to risks from changing interest rates. We do not use derivative financial instruments for speculative, hedging or trading purposes, although in the future we may enter into exchange rate hedging arrangements to manage foreign currency exchange risk. During the six months ended June 30, 2021, there were no material changes to our market risks from those disclosed in our Annual Report on Form 10-K for fiscal 2020.

ITEM 4. CONTROLS AND PROCEDURES

(a) Evaluation of Disclosure Controls and Procedures

The term "disclosure controls and procedures," as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended (the "Exchange Act"), refers to controls and procedures that are designed to ensure that information required to be disclosed by a company in the reports that it files or submits under the Exchange Act is recorded, processed, summarized and reported, within the time periods specified in the Securities and Exchange Commission’s rules and forms. Disclosure controls and procedures include, without limitation, controls and procedures designed to ensure that such information is accumulated and communicated to a company's management, including its principal executive and principal financial officers, as appropriate to allow timely decisions regarding required disclosure.

In designing and evaluating our disclosure controls and procedures, management recognizes that disclosure controls and procedures, no matter how well conceived and operated, can provide only reasonable, not absolute, assurance that the objectives of the disclosure controls and procedures are met. Additionally, in designing disclosure controls and procedures, our management necessarily was required to apply its judgment in evaluating the cost-benefit relationship of possible disclosure controls and procedures. The design of any system of controls also is based in part upon certain assumptions about the likelihood of future events, and there can be no assurance that any design will succeed in achieving its stated goals under all potential future conditions; over time, controls may become inadequate because of changes in conditions, or the degree of compliance with policies or procedures may deteriorate. Because of the inherent limitations in a control system, misstatements due to error or fraud may occur and not be detected.

Our management, with the participation of our Chief Executive Officer and our Chief Financial Officer, has evaluated the effectiveness of our disclosure controls and procedures as of June 30, 2021, the end of the period covered by this Quarterly Report on Form 10-Q. Based upon such evaluation, our Chief Executive Officer and our Chief Financial Officer have concluded that our disclosure controls and procedures were effective as of such date at the reasonable assurance level.

(b) Changes in Internal Control Over Financial Reporting

There have not been any changes in our internal control over financial reporting during our fiscal quarter ended June 30, 2021 that materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

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PART II

OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS

From time to time, we are subject to litigation and claims arising in the ordinary course of business, but we are not currently a party to any material legal proceedings and we are not aware of any pending or threatened legal proceeding against us that we believe could have a material adverse effect on our business, operating results, cash flows or financial condition.

ITEM 1A. RISK FACTORS

RISK FACTOR SUMMARY

Our business is subject to numerous risks. You should carefully consider the following risks, as well as general economic and business risks, and all of the other information contained in this Quarterly Report on Form 10-Q, together with any other documents we file with the SEC. Any of the following risks could have a material adverse effect on our business, operating results and financial condition and cause the trading price of our common stock to decline.

Among these important risks are the following:

•Global economic conditions, including those resulting from the COVID-19 pandemic, could materially adversely affect demand for our solutions and our financial performance.

•A significant portion of our revenue is attributable to sales by our customers on the Amazon and eBay marketplaces and through advertisements on Google. Our inability to continue to integrate our solutions with these channels would make our solutions less appealing to existing and potential new customers and could significantly reduce our revenue.

•We rely in part on a pricing model under which a variable portion of the fees we receive from customers is based upon the amount of GMV or advertising spend that those customers process through our platform, and any change in the attractiveness of that model or any decline in our customers' sales could adversely affect our financial results.

•We may not be able to respond to rapid changes in channel technologies or requirements, which could cause us to lose revenue and make it more difficult to maintain profitability.

•If we are unable to retain our existing customers, our revenue and results of operations could be adversely affected.

•As more of our sales efforts are targeted at brands and larger customers, our sales cycle may become more time-consuming and expensive, and we may encounter pricing pressure, which could harm our business and operating results.

•We may not be able to compete successfully against current and future competitors. If we do not compete successfully, we could experience lower sales volumes and pricing pressure, which could cause us to lose revenues, impair our ability to pursue our growth strategy and compromise our ability to maintain profitability.

•If the e-commerce industry consolidates around a limited number of online channels, or if the complexities and challenges faced by brands and retailers seeking to sell online otherwise diminish, demand for our solutions could decline.

•Our growth depends in part on the success of our strategic relationships with third parties.

•If we pursue opportunistic acquisitions or investments they may be unsuccessful and/or divert our management's attention and consume significant resources.

•Errors, defects or failures in our software, or human error, could cause our solutions to oversell our customers' inventory or misprice their offerings or could cause other errors, which would hurt our reputation and reduce customer demand.

•If the use of "cookie" tracking technologies is restricted, regulated or otherwise blocked, or if changes in our industry cause cookies to become less reliable or acceptable as a means of tracking consumer behavior, the amount or accuracy of GMV processed on our platform, and our related revenue, could decrease.

•We rely on non-redundant data centers and cloud computing providers to deliver our SaaS solutions. Any disruption of service from these providers could harm our business.

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•Our quarterly operating results have fluctuated in the past and may do so in the future, which could cause our stock price to decline.

•Evolving domestic and international data privacy regulations may restrict our ability, and that of our customers, to solicit, collect, process, disclose and use personal information or may increase the costs of doing so, which could harm our business.

•Cybersecurity incidents could harm our business and negatively impact our financial results.

•Activities of our customers or the content of their websites could subject us to liability.

RISKS RELATED TO OUR BUSINESS

Global economic conditions, including those resulting from the COVID-19 pandemic, could materially adversely affect demand for our solutions and our financial performance.

Our operations and performance depend significantly on worldwide economic conditions. Uncertainty about global economic conditions, including the ongoing global disruption due to the COVID-19 pandemic, and any subsequent outbreaks of COVID-19 or other infectious diseases, could negatively affect our ability to generate sales of our solutions. For example, customers may be unwilling to enter into or renew contracts with us as a result of reduced demand for their own products or their own economic uncertainty. In addition, tighter credit policies, increased unemployment rates, negative financial news or declines in income or asset values and other macroeconomic factors, or the perception that any of these may occur, could have a material negative effect on our customers' demand for our solutions and, accordingly, on our business, results of operations and financial condition. In addition, a prolonged recession or market correction resulting from the COVID-19 pandemic could decrease technology spending, adversely affecting demand for our solutions, or could lead customers to renegotiate contracts and seek pricing concessions or terminate their contracts, which could negatively impact our revenues and the value of our common stock.

The global pandemic of COVID-19 continues to evolve rapidly, and we continue to monitor the situation closely and assess the potential effects on our business; however, the ultimate impact is highly uncertain and subject to change and will depend on a number of future developments, such as the ultimate geographic spread of the disease, the duration and any future recurrences of the outbreak, the duration and effect of business disruptions and the short-term effects and ultimate effectiveness of the travel restrictions, quarantines, social distancing requirements, vaccine deployment and business closures in the United States and other countries to prevent, contain and treat the disease. Accordingly, we do not yet know the full extent of potential impacts on our business and operations, or those of our business partners and customers, or the global economy as a whole. While the increase in e-commerce during the COVID-19 pandemic has had a significant positive impact on our results of operations thus far, we believe that the heightened GMV levels we have seen are likely to dissipate somewhat over time as COVID-19 vaccinations are administered to the overall population, retail stores reopen and stay-at-home orders ease. Reductions in GMV levels or future adverse impacts on our results of operations due to the COVID-19 pandemic could adversely affect our revenue growth and financial results for the remainder of 2021 or beyond. Because our solutions are primarily sold on a subscription basis, any such adverse effects may not be fully reflected in our operating results until future periods. Accordingly, the current results and financial condition discussed in this report may not be indicative of our future operating results and trends.

In addition to overall economic and market conditions resulting from COVID-19, our business could be negatively impacted by other developments that result in decreased consumer spending. For example, the United States in recent years imposed increased tariffs on certain imports from China and other countries. Any economic uncertainty caused by the United States tariffs imposed or expected to be imposed on goods from China or other countries, and any retaliatory counter-measures imposed by countries subject to such tariffs, could have a negative impact on consumer spending for discretionary items, which in turn could hurt our brand and retailer customers in a manner that might cause them to spend less on our solutions. Any such outcome could impair our revenues and results of operations.

A significant portion of our revenue is attributable to sales by our customers on the Amazon and eBay marketplaces and through advertisements on Google. Our inability to continue to integrate our solutions with these channels would make our solutions less appealing to existing and potential new customers and could significantly reduce our revenue.

A substantial majority of the GMV that our customers process through our platform is derived from merchandise sold on the Amazon and eBay marketplaces or advertised on Google, and a similar portion of our variable fees is attributable to sales by our customers through these channels. These channels, and the other channels with which our solutions are integrated, have no obligation to do business with us or to allow us access to their systems, and they may decide at any time and for any reason to significantly curtail or inhibit our ability to integrate our solutions with their channels. Additionally, Amazon, eBay or Google may make significant changes to their respective business models, policies, systems, plans or ownership, and those changes

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could impair or inhibit our customers' ability to use our solutions to sell their products on those channels, or may adversely affect the volume of GMV that our customers can sell on those channels or reduce the desirability of selling on those channels. Further, Amazon, eBay or Google could decide to compete with us more vigorously. Any of these results could cause our customers to reevaluate the value of our products and services and potentially terminate their relationships with us and significantly reduce our revenue.

We rely in part on a pricing model under which a variable portion of the fees we receive from customers is based upon the amount of GMV or advertising spend that those customers process through our platform, and any change in the attractiveness of that model or any decline in our customers' sales could adversely affect our financial results.

We have adopted a pricing model under which a portion of the fees we receive from most of our customers is variable, based on the amount of our customers' GMV or advertising spend processed through our platform that exceeds a specified amount established by contract, which we refer to as variable fees. Most of our customer contracts include this variable fee component. If sales or advertising spend by our customers processed through our platform were to decline, or if more of our customers require pricing terms that do not provide for any variability based on their GMV or advertising spend processed through our platform, our revenue and margins could decline.

We may not be able to respond to rapid changes in channel technologies or requirements, which could cause us to lose revenue and make it more difficult to maintain profitability.

The e-commerce market is characterized by rapid technological change and frequent changes in rules, specifications and other requirements for brands and retailers to be able to sell their merchandise on particular channels, as well as developments in technologies that can impede the display and tracking of advertisements. Our ability to retain existing customers and attract new customers depends in large part on our ability to enhance and improve our existing solutions and introduce new solutions that can adapt quickly to these technological changes. To achieve market acceptance for our solutions, we must effectively anticipate and offer solutions that meet frequently changing channel requirements in a timely manner. If our solutions fail to do so, our ability to renew our contracts with existing customers and our ability to create or increase demand for our solutions will be impaired.

If we are unable to retain our existing customers, our revenue and results of operations could be adversely affected.

We sell our solutions pursuant to contractual arrangements that generally have one-year terms. Therefore, our revenue growth depends to a significant degree upon subscription renewals. Our customers have no obligation to renew their subscriptions after the subscription term expires, and these subscriptions may not be renewed or, if renewed, may not be renewed on the same or more favorable terms for us. We may not be able to accurately predict future trends in customer renewals, and our customers' renewal rates may decline or fluctuate because of several factors, including their satisfaction or dissatisfaction with our solutions, the cost of our solutions, the cost of solutions offered by our competitors and reductions in our customers' spending levels. Economic conditions resulting from the COVID-19 pandemic could also affect our customers' decisions on whether or not to renew their subscriptions with us. If our customers do not renew their subscriptions, renew on less favorable terms or for fewer modules, or do not purchase additional modules, our revenue may grow more slowly than expected or decline, and our ability to maintain profitability may be compromised.

As more of our sales efforts are targeted at brands and larger customers, our sales cycle may become more time-consuming and expensive, and we may encounter pricing pressure, which could harm our business and operating results.

The cost and length of our sales cycle varies by customer. As we target more of our sales efforts at selling to brands and larger customers, we may face greater costs, longer sales cycles and less predictability in completing some of our sales. These types of sales often require us to provide greater levels of education regarding our solutions. In addition, brands and larger customers may demand more training and other professional services. As a result of these factors, these sales opportunities may require us to devote greater sales support and professional services resources to individual customers, driving up costs and time required to complete sales and diverting sales and professional services resources to a smaller number of larger transactions.

We may not be able to compete successfully against current and future competitors. If we do not compete successfully, we could experience lower sales volumes and pricing pressure, which could cause us to lose revenues, impair our ability to pursue our growth strategy and compromise our ability to maintain profitability.

We face intense competition in the market for online channel management solutions and services, and we expect competition to intensify in the future. We have competitors, including some of the channels themselves, with longer operating histories, larger customer bases and greater financial, technical, marketing and other resources than we do. Increased competition may result in reduced pricing for our solutions, longer sales cycles or a decrease in our market share, any of which could negatively affect our revenue and future operating results and our ability to grow our business.

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A number of competitive factors could cause us to lose potential sales or to sell our solutions at lower prices or at reduced margins, including:

•Potential customers may choose to continue using or to develop applications in-house, rather than pay for our solutions;

•The channels themselves, which typically offer software tools, often for free, that allow brands and retailers to connect to them, may decide to compete more vigorously with us;

•Competitors may adopt more aggressive pricing policies and offer more attractive sales terms, adapt more quickly to new technologies and changes in customer requirements, and devote greater resources to the promotion and sale of their products and services than we can;

•Current and potential competitors have established or may establish cooperative relationships among themselves or with third parties to enhance their products and expand their markets, and consolidation in our industry is likely to intensify. Accordingly, new competitors or alliances among competitors may emerge and rapidly acquire significant market share;

•Current and potential competitors may offer software that addresses one or more online channel management functions at a lower price point or with greater depth than our solutions and may be able to devote greater resources to those solutions than we can; and

•Software vendors could bundle channel management solutions with other solutions or offer such products at a lower price as part of a larger product sale.

We may not be able to compete successfully against current and future competitors, including any channels that decide to compete against us more vigorously. In addition, competition may intensify as our competitors raise additional capital and as established companies in other market segments or geographic markets expand into our market segments or geographic markets. If we cannot compete successfully against our competitors, our business and our operating and financial results could be adversely affected.

If the e-commerce industry consolidates around a limited number of online channels, or if the complexities and challenges faced by brands and retailers seeking to sell online otherwise diminish, demand for our solutions could decline.

Our solutions enable brands and retailers to manage their merchandise sales through hundreds of disparate online channels. One of the key attractions of our solutions to brands and retailers is the ability to help address the complexity and fragmentation of selling online. Although the number and variety of online channels available to brands and retailers have been increasing, at the same time the share of online sales made through a small number of larger channels, particularly Amazon, has also been increasing. If the trend toward consolidation around a few large online channels accelerates, the difficulties faced by brands and retailers could decline, which might make our solutions less important to brands and retailers and could cause demand for our solutions to decline.

Our growth depends in part on the success of our strategic relationships with third parties.

We anticipate that we will continue to depend on our relationships with various third parties, including marketplaces and technology, content and logistics providers, in order to grow our business. Identifying, negotiating and documenting relationships with these third parties may require significant time and resources as does integrating their content and technology with our solutions. If the third-party content or technology integrated with our solutions is not well received by our customers, our brand and reputation could be negatively affected. Our agreements with third-party business partners are typically non-exclusive and do not prohibit them from working with our competitors or from offering competing services. If and to the extent that any of these third parties compete with us, it could hurt our growth prospects.

If we pursue opportunistic acquisitions or investments they may be unsuccessful and/or divert our management's attention and consume significant resources.

Any acquisition or investment may require us to use significant amounts of cash, issue potentially dilutive equity securities or incur debt. In addition, acquisitions involve numerous risks, any of which could harm our business, including:

•difficulties in integrating the operations, technologies, services and personnel of acquired businesses, especially if those businesses operate outside of our core competency of providing e-commerce software solutions;

•inability to achieve our targeted or forecasted financial results following an acquisition;

•cultural challenges associated with integrating employees from acquired businesses into our organization;

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•ineffectiveness or incompatibility of acquired technologies or services;

•failure to successfully further develop the acquired technology in order to recoup our investment;

•potential loss of key employees of acquired businesses;

•inability to maintain the key business relationships and the reputations of acquired businesses;

•diversion of management's attention from other business concerns;

•litigation associated with activities of acquired businesses, including claims from terminated employees, customers, former stockholders or other third parties;

•in the case of foreign acquisitions, the need to integrate operations across different cultures and languages and to address the particular economic, currency, political and regulatory risks associated with specific countries;

•costs necessary to establish and maintain effective internal controls for acquired businesses; and

•increased fixed costs.

Errors, defects or failures in our software, or human error, could cause our solutions to oversell our customers' inventory or misprice their offerings or could cause other errors, which would hurt our reputation and reduce customer demand.

Complex software applications such as ours may contain errors or defects, particularly when first introduced or when new versions or enhancements are released. Despite our testing and testing by our customers, our current and future products may contain defects. Our customers rely on our solutions to automate the allocation of their inventory simultaneously across multiple online channels, as well as to ensure that their sales comply with the policies of each channel and sometimes to dynamically determine product pricing at any given moment. Some customers subscribe to our solutions on a managed-service basis, in which case our personnel operate our solutions on behalf of the customer. In the event that our solutions do not function properly, or if there is human error on the part of our service staff, errors could occur, including that our customers might inadvertently sell more inventory than they actually have in stock, make sales that violate channel policies or underprice or overprice their offerings. Overselling their inventory could force our customers to cancel orders at rates that violate channel policies. Underpricing would result in lost revenue to our customers and overpricing could result in lost sales. In addition, our pricing policies with our customers are largely based upon our customers' expectations of the levels of their GMV that will be processed through our platform over the term of their agreement with us, and errors in our software or human error could cause transactions to be incorrectly processed that would cause GMV to exceed contractually agreed-upon thresholds, triggering imposition of variable fees on our customers, in which case our variable fee-based revenue could be overstated. Any of these results or other errors could reduce demand for our solutions and hurt our business reputation. Customers could also seek recourse against us in these cases and, while our contractual arrangements with customers typically provide that we are not liable for damages such as these, it is possible that these provisions would not be sufficient to protect us.

If the use of "cookie" tracking technologies is restricted, regulated or otherwise blocked, or if changes in our industry cause cookies to become less reliable or acceptable as a means of tracking consumer behavior, the amount or accuracy of GMV processed on our platform, and our related revenue, could decrease.

Cookies are small data files that are sent by websites and stored locally on an internet user's computer or mobile device. Our customers enable cookies on their sites and monitor internet user activity, such as viewing pages and completing transactions. We collect data via cookies that we ultimately use to report GMV, which translates to revenue. However, internet users can easily disable, delete and block cookies directly through browser settings or through other software, browser extensions or hardware platforms that physically block cookies from being created and stored.

Third-party cookies are downloaded from domains not associated with the address currently being viewed in an internet user's browser. Cookies can be specifically blocked by browser settings; for example, the Safari internet browser blocks third-party cookies by default. Internet users can also download free or paid "ad blocking" software that prevents third-party cookies from being stored on a user's device. On the other hand, first-party cookies are downloaded directly from the address domain of an internet user, and are generally considered safer by privacy concerns. We currently collect data from both first-party and third-party cookie implementations. Our customers currently implementing our third-party cookie solution might be slow to migrate their sites to first-party cookie technologies, which could result in less cookie data that we can collect, and therefore less reported revenue data that we can store.

There have been efforts within our industry to replace cookies with alternative tracking technologies. To the extent these efforts are successful, we may have difficulty adapting to those new tracking technologies and we may become dependent on third parties for access to tracking data. Similarly, privacy regulations may extend to those tracking technologies and restrict how we can use such technologies.

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Privacy regulations might also restrict how our customers deploy our cookies and other tracking technologies on their sites, and this could potentially increase the number of internet users that choose to proactively disable cookies and other tracking technologies on their systems. In the European Union, for example, the Directive on Privacy and Electronic Communications requires users to give their consent before cookie data can be stored on their local computer or mobile device. Users can decide to opt out of any cookie data creation, which could negatively impact the revenue we might recognize.

We may have to develop alternative systems to collect user revenue data if users block cookies or regulations introduce barriers to collecting cookie data. In addition, third parties may develop technology or policies to harvest user data including through next-generation web browsers or other means, which could subsequently prevent us from directly importing data to our systems. We may not be able to develop adequate alternatives to cookie data collection, which could negatively impact our ability to reliably measure GMV.

We rely on non-redundant data centers and cloud computing providers to deliver our SaaS solutions. Any disruption of service from these providers could harm our business.

We manage our platform and serve all of our customers from third-party data center facilities and cloud computing providers that are non-redundant, meaning that the data centers and providers are currently not configured as backup for each other. While we engineer and architect the actual computer and storage systems upon which our platform runs, we do not control the operation of the facilities at which they are deployed.

The owners of our data facilities have no obligation to renew their agreements with us on commercially reasonable terms, or at all. If we are unable to renew these agreements on commercially reasonable terms, we may be required to transfer to new data center facilities, and we may incur significant costs and possible service interruption in connection with doing so.

Any changes in third-party service levels at our data centers or any errors, defects, disruptions or other performance problems with our solutions could harm our reputation and damage our customers' businesses. Interruptions in our services could reduce our revenue, require us to issue credits to customers, subject us to potential liability, cause our existing customers to not renew their agreements or adversely affect our ability to attract new customers.

Our data centers and cloud computing providers are vulnerable to damage or interruption from human error, intentional bad acts, earthquakes, hurricanes, floods, fires, war, terrorist attacks, power losses, hardware failures, systems failures, telecommunications failures, cybersecurity incidents and similar events. The occurrence of a natural disaster or an act of terrorism, or vandalism or other misconduct, a decision to close the facilities without adequate notice or other unanticipated problems could result in lengthy interruptions in the availability of our SaaS solutions or impair their functionality. Our business, growth prospects and operating results would also be harmed if our customers and potential customers are not confident that our solutions are reliable.

Our quarterly operating results have fluctuated in the past and may do so in the future, which could cause our stock price to decline.

Our operating results have historically fluctuated due to changes in our business, and our future operating results may vary significantly from quarter to quarter due to a variety of factors, many of which are beyond our control. You should not rely on period-to-period comparisons of our operating results as an indication of our future performance. Factors that may cause fluctuations in our quarterly operating results include, but are not limited to, the following:

•the potential and evolving impact of the COVID-19 pandemic on our business and that of our customers;

•seasonal patterns in consumer spending;

•the addition of new customers or the loss of existing customers;

•changes in demand for our software;

•the timing and amount of sales and marketing expenses;

•changes in the prospects of the economy generally, which could alter current or prospective customers' spending priorities, or could increase the time it takes us to close sales;

•changes in our pricing policies or the pricing policies of our competitors;

•costs necessary to improve and maintain our software platform; and

•costs related to acquisitions of other businesses.

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Our operating results may fall below the expectations of market analysts and investors in some future periods, which could cause the market price of our common stock to decline substantially.

Evolving domestic and international data privacy regulations may restrict our ability, and that of our customers, to solicit, collect, process, disclose and use personal information or may increase the costs of doing so, which could harm our business.

Federal, state and foreign governments and supervising authorities have enacted, and may in the future enact, laws and regulations concerning the solicitation, collection, processing, disclosure or use of consumers' personal information. Evolving regulations regarding personal data and personal information, in the European Union and elsewhere, especially relating to classification of IP addresses, machine identification, household data, location data and other information, may limit or inhibit our ability to operate or expand our business.

Such laws and regulations require or may in the future require us or our customers to implement privacy and security policies and practices; permit individuals to access, correct or delete personal information stored or maintained by us or our customers; inform individuals of security incidents that affect their personal information; and, in some cases, obtain consent to use personal information for specified purposes. Other proposed legislation could, if enacted, impose additional requirements and prohibit the use of specific technologies, such as those that track individuals' activities on web pages or record when individuals click on a link contained in an email message. Such laws and regulations could restrict our customers' ability to collect and use web browsing data and personal information, which may reduce our customers' demand for our solutions.

The laws in this area are complex and developing rapidly. In the United States, many state legislatures have adopted legislation that regulates how businesses operate online, including measures relating to privacy, data security and data breaches. Laws in all states require businesses to provide notice to customers whose personally identifiable information has been disclosed as a result of a data breach. The laws are not consistent, and compliance in the event of a widespread data breach is costly. Further, states are constantly adopting new laws or amending existing laws, requiring attention to frequently changing regulatory requirements. For example, California enacted the California Consumer Privacy Act, or the CCPA, on June 28, 2018, which went into effect on January 1, 2020 and has been dubbed the first "GDPR-like" law (referring to the EU's General Data Protection Regulation, described below) in the United States. The CCPA gives California residents expanded rights to access and delete their personal information, opt out of certain personal information sharing and receive detailed information about how their personal information is used by requiring covered companies to provide new disclosures to California consumers (as that term is broadly defined) and provide such consumers new ways to opt-out of certain sales of personal information. The CCPA provides for civil penalties for violations, as well as a private right of action for data breaches that is expected to increase data breach litigation. The CCPA may increase our compliance costs and potential liability. Additionally, a new privacy law, the California Privacy Rights Act, or CPRA, was approved by California voters in the November 3, 2020 election. The CPRA will create additional obligations relating to consumer data beginning on January 1, 2022, with implementing regulations expected on or before July 1, 2022, and enforcement beginning July 1, 2023. Aspects of the CCPA and the CPRA, and their interpretation and enforcement, remain uncertain. We cannot fully predict the impact of the CCPA or the CPRA on our business or operations, but they may require us to modify our data processing practices and policies and to incur substantial costs and expenses in an effort to comply.

Some observers have noted that the CCPA could mark the beginning of a trend toward more stringent privacy legislation in the United States, and we expect that new legislation proposed or enacted in various other states will continue to shape the data privacy environment nationally. Certain state laws may be more stringent or broader in scope, or offer greater individual rights, with respect to confidential, sensitive and personal information than federal, international or other state laws, and such laws may differ from each other, which may complicate compliance efforts. For example, Virginia recently passed its Consumer Data Protection Act and Colorado recently passed the Colorado Privacy Act, both of which differ from the CPRA and go into effect on January 1, 2023 and July 1, 2023, respectively.

The General Data Protection Regulation, or GDPR, went into effect in the European Union in May 2018, with the intent of unifying data protection within the European Union under a single law. The GDPR has resulted in significantly greater compliance burdens and costs for companies with customers or operations in the European Union. The GDPR creates a range of new compliance obligations and increases financial penalties for non-compliance, and extends the scope of the European Union data protection law to all companies processing personal data of European Union data subjects, regardless of the company's location. These laws apply not only to third-party transactions, but also to transfers of information between us and our subsidiaries, including employee information.

Further, the United Kingdom's vote in favor of exiting the European Union, often referred to as Brexit, and ongoing developments in the United Kingdom have created uncertainty with regard to data protection regulation in the United Kingdom. The Data Protection Act of 2018, which "implements" and complements the GDPR, achieved Royal Assent on May 23, 2018

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and is now effective in the United Kingdom. With the expiration of the transition period on December 31, 2020, companies will have to comply with both the GDPR and the GDPR as incorporated into United Kingdom national law, which has the ability to separately fine up to the greater of £17.5 million or 4% of global turnover, which exposes us to further compliance risk. While the European Commission recently adopted an adequacy decision for the UK, meaning data may freely flow from the EU to the UK, the adequacy decision is subject to a "sunset clause", which provides uncertainty on the ability to rely on the adequacy decision in the long-term. We may incur liabilities, expenses, costs, and other operational losses under GDPR and applicable EU Member States and the United Kingdom privacy laws in connection with any measures we take to comply with them.

We will continue to follow developments and work to maintain conforming means of transferring data from Europe, but despite our efforts to address the changes, we may be unsuccessful in establishing conforming means of transferring data from Europe. For example, in 2020, the European Court of Justice, or ECJ, invalidated the use of the E.U.-U.S. Privacy Shield, which had enabled the transfer of personal data from the European Union to the United States for companies like us that were self-certified under the Privacy Shield. The ECJ also called into question the use of the standard contractual clauses. As we are no longer able to rely on the Privacy Shield, if we are unable to implement a valid compliance mechanism for cross-border transfers of personal data, we may face increased exposure to regulatory actions, substantial fines and injunctions against processing or transferring personal data from the European Economic Area, or EEA. Recently, the European Commission adopted new standard contractual clauses under the GDPR for personal data transfers from the EEA to outside of the EEA, and the European Data Protection Board also issued guidelines for companies to identify and implement appropriate supplementary measures, if applicable, for transferring personal data of European Union data subjects across borders. In connection with these developments, we may have obligations to conduct transfer impact assessments for such cross-border data transfers and may need to implement additional security or other supplementary measures. If we elect to rely on the standard contractual clauses for data transfers, we may be required to expend significant time and resources to update our contractual arrangements and to comply with such obligations. Additionally, the new standard contractual clauses could be invalidated, which could require us to implement costly substitutions for the data transfers we undertake in order to perform our services or prevent such transfers entirely.

There is also significant uncertainty related to the manner in which data protection authorities will seek to enforce compliance with GDPR. For example, it is not clear if the authorities will conduct random audits of companies doing business in the European Union, or if the authorities will just continue to wait for complaints to be filed by individuals who claim their rights have been violated. Enforcement uncertainty and the costs associated with ensuring GDPR compliance could be onerous and adversely affect our business, financial condition, results of operations and prospects. While we do not currently believe that our compliance with the GDPR will have a material effect on our business, we will continue to monitor regulation and enforcement under this new law.

Changing industry standards and industry self-regulation regarding the collection, use and disclosure of data may have similar effects. Existing and future privacy and data protection laws and increasing sensitivity of consumers to unauthorized disclosures and use of personal information may also negatively affect the public's perception of our customers' sales practices. If our solutions are perceived to cause, or are otherwise unfavorably associated with, insecurity of personal information, whether or not illegal, we or our customers may be subject to public criticism. Public concerns regarding data collection, privacy and security may also cause some consumers to be less likely to visit our customers' websites or otherwise interact with our customers, which could limit the demand for our solutions and inhibit the growth of our business.

Any failure on our part to comply with applicable privacy and data protection laws, regulations, policies and standards or any inability to adequately address privacy or security concerns associated with our solutions, even if unfounded, could subject us to liability, damage our reputation, impair our sales and harm our business. Furthermore, the costs to our customers of compliance with, and other burdens imposed by, such laws, regulations, policies and standards may limit adoption of and demand for our solutions.

Cybersecurity incidents could harm our business and negatively impact our financial results.

Cybersecurity incidents could endanger the confidentiality, integrity and availability of our information resources and the information we collect, use, store and disclose. These incidents may be an intentional attack or an unintentional event, targeted at us or our third-party contractors or consultants, and could involve gaining unauthorized access to our information systems for purposes of misappropriating assets, stealing confidential or personal information, corrupting data or causing operational disruption. Such disruptions may be caused by events such as computer hacking, phishing attacks, ransomware, dissemination of computer viruses, worms and other destructive or disruptive software, denial of service attacks, exploits by trusted insiders and other malicious activity, as well as power outages, natural disasters (including extreme weather), terrorist attacks, user error or other similar events. The possibility of such events may be increased in the current environment in which all of our employees and the employees of our customers are working remotely. We believe that we take reasonable steps that are designed to protect the security, integrity and confidentiality of the information we collect, use, store, and disclose, but there is

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no guarantee that inadvertent or unauthorized data access will not occur despite our efforts. For example, our system redundancy may be ineffective or inadequate, or we could be impacted by software bugs or other technical malfunctions, as well as error or malfeasance by anyone with access to our data. In addition, while we believe we have adequate insurance coverage to compensate for any losses associated with such events, the coverage may in fact not be adequate to cover all potential losses. The development and maintenance of these systems, controls and processes is costly and requires ongoing monitoring and updating as technologies change and efforts to overcome security measures become increasingly sophisticated. Any unauthorized access or use of information, virus or similar breach or disruption to our, our customers', or our partners' systems and security measures could result in disrupted operations, loss of information, damage to our reputation and customer relationships, early termination of our contracts and other business losses, indemnification of our customers, misstated or unreliable financial data, liability for stolen assets or information, increased cybersecurity protection and insurance costs, financial penalties, litigation, regulatory investigations, and other significant liabilities, any of which could materially harm our business.

Activities of our customers or the content of their websites could subject us to liability.

Existing laws relating to the liability of providers of online products and services for activities of their users are in flux both within the United States and internationally. Our customer contracts require that our customers are only permitted to use our products in accordance with applicable law. However, if our customers were to use our products in violation of applicable law, we may become subject to lawsuits and liability arising from their conduct. Additionally, the conduct of our customers may subject us to regulatory enforcement actions or liability.

Although we do not have significant opportunities for users of our service to publish user-defined content, we have certain protections against copyright infringement or defamatory content. Specifically, the Digital Millennium Copyright Act, or DMCA, contains provisions that limit liability for some user-generated materials that infringe copyrights. In addition, Section 230 of the Communications Decency Act, or CDA, provides immunity from liability for providers of an interactive computer service who publish defamatory information provided by users of the service. Immunity under the DMCA and the CDA has been well-established through case law. On a regular basis, however, challenges to both laws seek to limit immunity. For example, a recent executive order and a letter from several senators to the U.S. Federal Communications Commission have renewed calls for the protections of Section 230 to be scaled back. Any such changes could affect our ability to claim protection under the CDA.

Although these and other similar legal provisions, such as the European Union e-Commerce Directive, provide limited protections from liability for providers like us, those protections may not be interpreted in a way that applies to us, may be amended in the future, or may not provide us with complete protection from liability claims. If we are found not to be protected by the safe harbor provisions of the DMCA, CDA or other similar laws, or if we are deemed subject to laws in other countries that may not have the same protections or that may impose more onerous obligations on us, we may owe substantial damages and our brand, reputation and financial results may be harmed.

The seasonality of our business creates significant variance in our quarterly revenue, which makes it difficult to compare our financial results on a sequential quarterly basis.

Our customers are brands and retailers that typically realize a significant portion of their online sales in the fourth quarter of each year during the holiday season. As a result of this seasonal variation, our revenue fluctuates, with the variable portion of our fees typically being higher in the fourth quarter than in other quarters and with revenue generally declining in the first quarter sequentially from the fourth quarter. Our business is therefore not necessarily comparable on a sequential quarter-over-quarter basis and you should not rely solely on quarterly comparisons to analyze our growth.

Failure to adequately manage our growth could impair our ability to deliver high-quality solutions to our customers, hurt our reputation and compromise our ability to maintain profitability.

We have experienced, and may experience in the future, significant growth in our business. If we do not effectively manage our growth, the quality of service of our solutions may suffer, which could negatively affect our reputation and demand for our solutions. Our growth has placed, and may place in the future, a significant strain on our managerial, operational and financial resources and our infrastructure. Our future success will depend, in part, upon the ability of our senior management to manage growth effectively. This will require us to, among other things:

•hire additional personnel, both domestically and internationally;

•implement additional information management systems;

•maintain close coordination among our engineering, operations, legal, finance, sales and marketing and client service and support organizations; and

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•further develop our operating, administrative, legal, financial and accounting systems and controls.

Moreover, if our sales increase, we may be required to concurrently deploy our hosting infrastructure at multiple additional locations or provide increased levels of customer service. Failure to accomplish any of these requirements could impair our ability to continue to deliver our solutions in a timely fashion, fulfill existing customer commitments or attract and retain new customers.

If we do not retain our senior management team and key employees, or if we fail to attract and retain additional highly skilled sales talent, we may not be able to sustain our growth or achieve our business objectives.

Our future success is substantially dependent on the continued service of our senior management team. Our future success also depends on our ability to continue to attract, retain, integrate and motivate highly skilled technical, sales and administrative employees. Competition for these employees in our industry is intense. As a result, we may be unable to attract or retain these management and other key personnel that are critical to our success, resulting in harm to our key client relationships, loss of key information, expertise or know-how and unanticipated recruitment and training costs. The loss of the services of our senior management or other key employees could make it more difficult to successfully operate our business and pursue our business goals.

Our business and growth objectives also may be hindered if our efforts to expand our sales team do not generate a corresponding increase in revenue. In particular, if we are unable to hire, develop and retain talented sales personnel or if our new sales personnel are unable to achieve expected productivity levels in a reasonable period of time, we may not be able to significantly increase our revenue and grow our business.

We may be subject to additional obligations to collect and remit sales tax and other taxes, and we may be subject to tax liability for past sales, which could harm our business.

State, local and foreign jurisdictions have differing rules and regulations governing sales, use, value added and other taxes, and these rules and regulations are subject to varying interpretations that may change over time. In particular, the applicability of such taxes to our platform in various jurisdictions is unclear. Further, these jurisdictions' rules regarding tax nexus are complex and vary significantly. In 2018, the U.S. Supreme Court reversed its prior decision that prohibited states from requiring online retailers without a physical presence to collect and remit sales tax. In its decision, the Supreme Court upheld a South Dakota statute that imposed a sales tax collection obligation on remote sellers with sales exceeding specified thresholds. In addition, it is possible that one or more states or the federal government or foreign countries may seek to impose a tax collection, reporting or record-keeping obligation on companies like us that facilitate e-commerce, even though we are not an online retailer. This is a rapidly evolving area and we cannot predict what legislative or enforcement action might be taken by states, the federal government or foreign countries.

As a result, we could face the possibility of tax assessments and audits, and our liability for these taxes and associated penalties could exceed our original estimates. We do not currently have any ongoing sales tax audits, though any successful assertion that we should be collecting additional sales, use, value added or other taxes in those jurisdictions where we have not historically done so and do not accrue for such taxes could result in substantial tax liabilities and related penalties for past sales. The imposition of a tax collection, reporting or record-keeping obligation in a jurisdiction where we do not currently have such an obligation could also create additional administrative burdens for us, put us at a competitive disadvantage if they do not impose similar obligations on our competitors and decrease our future sales, which could have a material adverse impact on our business and operating results.

Our effective tax rate may fluctuate, and we may incur obligations in tax jurisdictions in excess of accrued amounts.

We are subject to taxation in numerous countries, states and local tax jurisdictions. As a result, our effective tax rate is derived from a combination of applicable tax rates in the various places that we operate. In preparing our financial statements, we estimate the amount of tax that will become payable in each jurisdiction. Nevertheless, our effective tax rate may be different than experienced in the past due to numerous factors, including passage of new federal income tax laws, changes in the mix of our profitability from jurisdiction to jurisdiction, the results of examinations and audits of our tax filings, our inability to secure or sustain acceptable agreements with tax authorities, changes in accounting for income taxes and changes in tax laws. Any of these factors could cause us to experience an effective tax rate significantly different from previous periods or our current expectations and may result in tax obligations in excess of amounts accrued in our financial statements.

For example, in 2017, the Tax Cuts and Jobs Act, or the Tax Act, went into effect significantly revising the Internal Revenue Code of 1986, as amended. The Act, among other things, contains significant changes to corporate taxation, including reduction of the corporate tax rate from a top marginal rate of 35% to a flat rate of 21%, limitation of the tax deduction for interest expense to 30% of adjusted earnings (except for certain small businesses), limitation of the deduction for net operating losses to 80% of current year taxable income and elimination of net operating loss carrybacks, one time taxation of offshore

39

earnings at reduced rates regardless of whether they are repatriated, elimination of U.S. tax on foreign earnings (subject to certain important exceptions), immediate deductions for certain new investments instead of deductions for depreciation expense over time, and modifying or repealing many business deductions and credits. Notwithstanding the reduction in the corporate income tax rate, the overall impact of the Tax Act is uncertain and our business and financial condition could be adversely affected. In addition, it is uncertain if and to what extent various states will conform to the Tax Act. The impact of this tax reform on holders of our common stock is also uncertain and could be adverse. We urge our stockholders to consult with their legal and tax advisors with respect to this legislation and the potential tax consequences of investing in or holding our common stock.

Our ability to use our net operating loss carryforwards and certain other tax attributes may be limited.

As of December 31, 2020, we had $110.3 million of U.S. federal and $136.5 million of state net operating loss carryforwards available to reduce future taxable income, which will begin to expire in 2026 for federal and 2021 for state tax purposes. It is possible that we will not generate taxable income in time to use these net operating loss carryforwards before their expiration or at all. Under legislative changes made in December 2017, as modified by federal tax law changes enacted in March 2020, U.S. federal net operating losses incurred in tax years beginning after December 31, 2017 and in future years may be carried forward indefinitely, but, for tax years beginning after December 31, 2020, the deductibility of such net operating losses is limited. In addition, the federal and state net operating loss carryforwards and certain tax credits may be subject to significant limitations under Section 382 and Section 383 of the Internal Revenue Code of 1986, as amended, or the Code, respectively, and similar provisions of state law. Under those sections of the Code, if a corporation undergoes an "ownership change," the corporation's ability to use its pre-change net operating loss carryforwards and other pre-change attributes, such as research tax credits, to offset its post-change income or tax may be limited. In general, an "ownership change" will occur if there is a cumulative change in our ownership by "5-percent shareholders" that exceeds 50 percentage points over a rolling three-year period. Similar rules may apply under state tax laws. We have completed a Section 382 review and have determined that, excluding a de minimis amount of acquired net operating losses, none of the operating losses will expire solely due to Section 382 limitation(s). However, we may experience ownership changes in the future as a result of future shifts in our stock ownership, some of which may be outside of our control. If an ownership change occurs and our ability to use our net operating loss carryforwards and tax credits is materially limited, it would harm our business by effectively increasing our future tax obligations.

We recorded a valuation allowance against all of our U.S. federal and state deferred tax assets as of December 31, 2020. We intend to continue maintaining a full valuation allowance on these deferred tax assets until there is sufficient evidence to support the reversal of all or some portion of these allowances. However, given our current earnings and anticipated future earnings, we believe that there is a reasonable possibility that in the foreseeable future, sufficient positive evidence may become available to reach a conclusion that a portion of the valuation allowance will no longer be needed. Release of the valuation allowance would result in the recognition of certain deferred tax assets and a decrease to income tax expense for the period the release is recorded. However, the exact timing and amount of the valuation allowance release are still unknown and will be based on a number of factors, including the level of profitability that we are able to actually achieve.

We have incurred significant net losses since inception, and even though we achieved net income for the most recent quarter and prior years, it is possible that our operating expenses will increase in the future and impact our level of profitability.

We had an accumulated deficit of $147.7 million as of June 30, 2021 due to net losses incurred in periods prior to 2019. Although we achieved net income of $10.0 million, $18.8 million and $3.5 million for the six months ended June 30, 2021 and the years ended December 31, 2020 and 2019, respectively, it is possible that our operating expenses will increase in the future, which could negatively impact our prospects for maintaining profitability in future periods. If we are not able to maintain profitability, the value of our company and our common stock could decline significantly.

If the e-commerce market does not grow, or grows more slowly than we expect, particularly on the channels that our solutions support, demand for our online channel management solutions could be adversely affected.

For our existing customers and potential customers to be willing to subscribe to our solutions, the internet must continue to be accepted and widely used for selling merchandise. As e-commerce continues to evolve, regulation by federal, state or foreign agencies may increase. Any regulation imposing greater fees for internet use or restricting information exchanged over the internet could result in a decline in the use of the internet, which could harm our business.

In addition, if consumer utilization of our primary e-commerce channels, such as Amazon, eBay and Google, does not grow or grows more slowly than we expect, demand for our solutions would be adversely affected, our revenue would be negatively impacted and our ability to pursue our growth strategy and become profitable would be compromised.

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RISKS RELATED TO THE SOFTWARE-AS-A-SERVICE (SAAS) MODEL

If we fail to manage and increase the capacity of our hosted infrastructure, our customers may be unable to process transactions through our platform, which could harm our reputation and demand for our solutions.

We have experienced significant growth in the number of users, transactions and data that our hosting infrastructure supports. We seek to maintain sufficient excess capacity in our hosted infrastructure to be sufficiently flexible and scalable to meet the needs of all of our customers. We also seek to maintain excess capacity to facilitate the rapid provision of new customer deployments and the expansion of existing customer deployments and to handle spikes in usage. However, the provision of new hosting infrastructure requires significant lead time. If we do not accurately predict our infrastructure capacity requirements, particularly in the fourth quarter when we typically experience significant increases in the volume of customer transactions processed through our platform, our customers could experience service outages that may subject us to financial penalties or other liabilities, result in customer losses, harm our reputation and adversely affect our ability to grow our revenue.

We derive most of our revenue from annual subscription agreements, as a result of which a significant downturn in our business may not be immediately reflected in our operating results.

We derive most of our revenue from subscription agreements, which are typically one year in length. As a result, a significant portion of the revenue we report in each quarter is generated from customer agreements entered into during previous periods. Consequently, a decline in new or renewed subscriptions in any one quarter may not be reflected in our financial performance in that quarter but might negatively affect our revenue in future quarters. Accordingly, the effect of significant declines in sales and market acceptance of our solutions, including as a result of the COVID-19 pandemic, may not be reflected in our short-term results of operations.

Our business is substantially dependent upon the continued growth of the market for on-demand SaaS solutions. If this market does not continue to grow, demand for our solutions could decline, which in turn could cause our revenues to decline and impair our ability to become profitable.

We derive, and expect to continue to derive, substantially all of our revenue from the sale of our solutions, which are delivered under a SaaS model. As a result, widespread use and acceptance of this business model is critical to our future growth and success. Under the more traditional license model for software procurement, users of the software typically run the applications in-house on their own hardware. Because many companies are generally predisposed to maintaining control of their information technology systems and infrastructure, there may be resistance to the concept of accessing software functionality as a service provided by a third party. In addition, the market for SaaS solutions is still evolving, and existing and new market participants may introduce new types of solutions and different approaches to enable organizations to address their needs. If the market for SaaS solutions fails to grow or grows more slowly than we currently anticipate, demand for our solutions and our revenue, gross margin and other operating results could be negatively impacted.

RISKS RELATED TO OUR INTERNATIONAL OPERATIONS

Our international operations subject us to increased challenges and risks. If we do not successfully manage the risks associated with international operations, we could experience a variety of costs and liabilities and the attention of our management could be diverted.

We have international operations and may further expand internationally by opening offices in new countries and regions worldwide. However, our ability to manage our business and conduct our operations internationally requires considerable management attention and resources and is subject to the particular challenges of supporting a rapidly growing business in an environment of multiple languages, cultures, customs, taxation systems, alternative dispute systems, regulatory systems and commercial infrastructures. International expansion will require us to invest significant funds and other resources. Expanding internationally may subject us to new risks that we have not faced before or increase risks that we currently face, including risks associated with:

•recruiting and retaining employees in foreign countries;

•increased competition from local providers;

•compliance with applicable foreign laws and regulations;

•compliance with changing foreign privacy, data protection and information security laws and regulations and the risks and costs of noncompliance;

•cross-border data transfers among us, our subsidiaries, and our customers, vendors, and business partners;

•longer sales or collection cycles in some countries;

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•credit risk and higher levels of payment fraud;

•compliance with anti-bribery laws, such as the Foreign Corrupt Practices Act;

•currency exchange rate fluctuations;

•tariffs, customs, trade sanctions, trade embargoes and other barriers to importing or exporting materials and products in a cost-effective and timely manner, or changes in applicable tariffs or customs rules;

•foreign exchange controls that might prevent us from repatriating cash earned outside the United States;

•economic and political instability in some countries, including terrorist attacks and civil unrest;

•less protective intellectual property laws;

•compliance with the laws of numerous foreign taxing jurisdictions in which we conduct business, potential double taxation of our international earnings and potentially adverse tax consequences due to changes in applicable U.S. and foreign tax laws;

•increased costs to establish and maintain effective controls at foreign locations; and

•overall higher costs of doing business internationally.

If our revenue from our international operations does not exceed the expense of establishing and maintaining these operations, our business and operating results will suffer and we may decide to make changes to our business in an effort to mitigate losses. For example, in the third quarter of 2019, as part of a strategic initiative to reduce our expenses and align our operations with evolving business needs, we discontinued our physical operations in China.

We are subject to governmental export and import controls that could impair our ability to compete in international markets due to licensing requirements and subject us to liability if we are not in full compliance with applicable laws.

Our solutions are subject to export controls, including the Commerce Department's Export Administration Regulations and various economic and trade sanctions regulations established by the Treasury Department's Office of Foreign Assets Controls, and exports of our solutions must be made in compliance with these laws. If we fail to comply with these U.S. export control laws and import laws, including U.S. Customs regulations, we could be subject to substantial civil or criminal penalties, including the possible loss of export or import privileges, fines, which may be imposed on us and responsible employees or managers, and, in extreme cases, the incarceration of responsible employees or managers. Obtaining the necessary authorizations, including any required license, for a particular sale may be time-consuming, is not guaranteed and may result in the delay or loss of sales opportunities.

Furthermore, the U.S. export control laws and economic sanctions laws prohibit the shipment or export of specified products and services to U.S. embargoed or sanctioned countries, governments and persons. Even though we take precautions to prevent our solutions from impermissibly being provided to U.S. sanctions targets, if our solutions and services were to impermissibly be exported to those prohibited countries despite such precautions, we could be subject to government investigations, penalties, reputational harm or other negative consequences.

Any change in export or import regulations, economic sanctions or related laws, shift in the enforcement or scope of existing regulations, or change in the countries, governments, persons or technologies targeted by such regulations, could result in decreased use of our solutions, or in our decreased ability to export or sell our solutions to existing or potential customers with international operations. Additionally, changes in our solutions may be required in response to changes in export and import regulations, which could lead to delays in the introduction and sale of our solutions in international markets, prevent our customers with international operations from deploying our solutions or, in some cases, prevent the export or import of our solutions to some countries, governments or persons altogether. Any decreased use of our solutions or limitation on our ability to export our solutions or sell them in international markets would hurt our revenue and compromise our ability to pursue our growth strategy.

RISKS RELATED TO INTELLECTUAL PROPERTY

We operate in an industry with extensive intellectual property litigation. Claims of infringement against us may hurt our business.

Our success depends, in part, upon non-infringement of intellectual property rights owned by others and being able to resolve claims of intellectual property infringement without major financial expenditures or adverse consequences. The internet-related software field generally is characterized by extensive intellectual property litigation. Although our industry is rapidly evolving, many companies that own, or claim to own, intellectual property have aggressively asserted their rights. From

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time to time, we have been subject to legal proceedings and claims relating to the intellectual property rights of others, and we expect that third parties will continue to assert intellectual property claims against us, particularly as we expand the complexity and scope of our business. In addition, most of our subscription agreements require us to indemnify our customers and business partners against claims that our solutions infringe the intellectual property rights of third parties.

Future litigation may be necessary to defend ourselves or our customers and business partners by determining the scope, enforceability, and validity of third-party proprietary rights or to establish our proprietary rights. Some of our competitors have substantially greater resources than we do and are able to sustain the costs of complex intellectual property litigation to a greater degree and for longer periods of time than we could. In addition, patent holding companies that focus solely on extracting royalties and settlements by enforcing patent rights may target us. Regardless of whether claims that we are infringing patents or other intellectual property rights have any merit, these claims are time-consuming and costly to evaluate and defend and could:

•hurt our reputation;

•adversely affect our relationships with our current or future customers;

•cause delays or stoppages in providing our services;

•divert management's attention and resources;

•require technology changes to our software that would cause us to incur substantial cost;

•subject us to significant liabilities; and

•require us to cease some or all of our activities.

In addition to liability for monetary damages against us, which may be tripled and may include attorneys' fees under certain statutes, or, in some circumstances, damages against our customers, we may be prohibited from developing, commercializing or continuing to provide some or all of our software solutions unless we obtain licenses from, and pay royalties to, the holders of the patents or other intellectual property rights, or license or develop substitute solutions, which may not be available on commercially favorable terms, or at all.

Our failure to protect our intellectual property rights could diminish the value of our services, weaken our competitive position and reduce our revenue.

We regard the protection of our intellectual property, which includes trade secrets, copyrights, trademarks, domain names and patent applications, as critical to our success. We strive to protect our intellectual property rights by relying on federal, state and common law rights, as well as contractual restrictions. We enter into confidentiality and invention assignment agreements with our employees and contractors, and confidentiality agreements with parties with whom we conduct business in order to limit access to, and disclosure and use of, our proprietary information. However, these contractual arrangements and the other steps we have taken to protect our intellectual property may not prevent the misappropriation of our proprietary information or deter independent development of similar technologies by others.

We have received patent protection for some of our technologies and are seeking patent protection for other of our technologies but there can be no assurance that any patents will ultimately be issued. We have registered domain names, trademarks and service marks in the United States and in jurisdictions outside the United States and are also pursuing additional registrations. Effective trade secret, copyright, trademark, domain name and patent protection is expensive to develop and maintain, both in terms of initial and ongoing registration requirements and the costs of defending our rights. We may be required to protect our intellectual property in an increasing number of jurisdictions, a process that is expensive and may not be successful or which we may not pursue in every location. We may, over time, increase our investment in protecting our intellectual property through additional patent filings that could be expensive and time-consuming.

We have licensed in the past, and expect to license in the future, some of our proprietary rights, such as trademarks or copyrighted material, to third parties. These licensees may take actions that diminish the value of our proprietary rights or harm our reputation.

Monitoring unauthorized use of our intellectual property is difficult and costly. Our efforts to protect our proprietary rights may not be adequate to prevent misappropriation of our intellectual property. Further, we may not be able to detect unauthorized use of, or take appropriate steps to enforce, our intellectual property rights. Our competitors may also independently develop similar technology. In addition, the laws of many countries, such as China and India, do not protect our proprietary rights to as great an extent as do the laws of European countries and the United States. Further, the laws in the United States and elsewhere change rapidly, and any future changes could adversely affect us and our intellectual property. Our failure to meaningfully protect our intellectual property could result in competitors offering services that incorporate our most

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technologically advanced features, which could seriously reduce demand for our software solutions. In addition, we may in the future need to initiate infringement claims or litigation. Litigation, whether we are a plaintiff or a defendant, can be expensive, time-consuming and may divert the efforts of our technical staff and managerial personnel, which could harm our business, whether or not such litigation results in a determination that is unfavorable to us. In addition, litigation is inherently uncertain, and thus we may not be able to stop our competitors from infringing upon our intellectual property rights.

Our use of "open source" software could negatively affect our ability to sell our solutions and subject us to possible litigation.

A portion of our technology platform and our solutions incorporates so-called "open source" software, and we may incorporate additional open source software in the future. Open source software is generally licensed by its authors or other third parties under open source licenses. If we fail to comply with these licenses, we may be subject to specified conditions, including requirements that we offer our solutions that incorporate the open source software for no cost, that we make available source code for modifications or derivative works we create based upon, incorporating or using the open source software and that we license such modifications or derivative works under the terms of the particular open source license. If an author or other third party that distributes open source software we use were to allege that we had not complied with the conditions of one or more of these licenses, we could be required to incur significant legal expenses defending against such allegations and could be subject to significant damages, including being enjoined from the sale of our solutions that contained the open source software and required to comply with the foregoing conditions, which could disrupt the sale of the affected solutions. In addition, there have been claims challenging the ownership of open source software against companies that incorporate open source software into their products. As a result, we could be subject to suits by parties claiming ownership of what we believe to be open source software. Litigation could be costly for us to defend, have a negative effect on our operating results and financial condition and require us to devote additional research and development resources to change our products.

RISKS RELATED TO OWNERSHIP OF OUR COMMON STOCK

An active trading market for our common stock may not continue to develop or be sustained.

Although our common stock is listed on the New York Stock Exchange, or NYSE, we cannot assure you that an active trading market for our shares will continue to develop or be sustained. If an active market for our common stock does not continue to develop or is not sustained, it may be difficult for investors in our common stock to sell shares without depressing the market price for the shares or to sell the shares at all.

The trading price of the shares of our common stock has been and is likely to continue to be volatile.

Our stock price has been volatile. The stock market in general and the market for technology companies in particular have experienced extreme volatility that has often been unrelated to the operating performance of particular companies. As a result of this volatility, investors may not be able to sell their common stock at or above the price paid for the shares. The market price for our common stock may be influenced by many factors, including:

•actual or anticipated variations in our operating results;

•changes in financial estimates by us or by any securities analysts who might cover our stock;

•conditions or trends in our industry;

•stock market price and volume fluctuations of comparable companies and, in particular, those that operate in the software industry;

•announcements by us or our competitors of new product or service offerings, significant acquisitions, strategic partnerships or divestitures;

•announcements of investigations or regulatory scrutiny of our operations or lawsuits filed against us;

•capital commitments;

•investors' general perception of our company and our business;

•recruitment or departure of key personnel; and

•sales of our common stock, including sales by our directors and officers or specific stockholders.

Stockholders may initiate class action lawsuits against us following periods of volatility in the market prices of our common stock. For example, in 2015, two purported class action complaints were filed against us, alleging violations of the federal securities laws. The cases were later dismissed by federal courts without any liability to us. New litigation, if instituted against us, could cause us to incur substantial costs and divert management's attention and resources from our business.

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If equity research analysts do not publish research or reports, or publish unfavorable research or reports, about us, our business or our market, our stock price and trading volume could decline.

The trading market for our common stock is influenced by the research and reports that equity research analysts publish about us and our business, and we have limited research coverage by equity research analysts. Equity research analysts may elect not to initiate or continue to provide research coverage of our common stock, and such lack of research coverage may adversely affect the market price of our common stock. Even if we have equity research analyst coverage, we will not have any control over the analysts or the content and opinions included in their reports. The price of our stock could decline if one or more equity research analysts downgrade our stock or issue other unfavorable commentary or research. If one or more equity research analysts ceases coverage of our company or fails to publish reports on us regularly, demand for our stock could decrease, which in turn could cause our stock price or trading volume to decline.

The issuance of additional stock in connection with financings, acquisitions, investments, our stock incentive plans or otherwise will dilute all other stockholders.

Our certificate of incorporation authorizes us to issue up to 100,000,000 shares of common stock and up to 5,000,000 shares of preferred stock with such rights and preferences as may be determined by our board of directors. Subject to compliance with applicable rules and regulations, we may issue our shares of common stock or securities convertible into our common stock from time to time in connection with a financing, acquisition, investment, our stock incentive plans or otherwise. Any such issuance could result in substantial dilution to our existing stockholders and cause the trading price of our common stock to decline.

Provisions in our corporate charter documents and under Delaware law may prevent or frustrate attempts by our stockholders to change our management and hinder efforts to acquire a controlling interest in us, and the market price of our common stock may be lower as a result.

There are provisions in our certificate of incorporation and bylaws that may make it difficult for a third party to acquire, or attempt to acquire, control of our company, even if a change in control was considered favorable by some or all of our stockholders. For example, our board of directors has the authority to issue up to 5,000,000 shares of preferred stock. The board of directors can fix the price, rights, preferences, privileges and restrictions of the preferred stock without any further vote or action by our stockholders. The issuance of shares of preferred stock may delay or prevent a change in control transaction. As a result, the market price of our common stock and the voting and other rights of our stockholders may be adversely affected. An issuance of shares of preferred stock may result in the loss of voting control to other stockholders.

Our charter documents also contain other provisions that could have an anti-takeover effect, including:

•only one of our three classes of directors is elected each year;

•stockholders are not entitled to remove directors other than by a 66 2/3% vote and only for cause;

•stockholders are not permitted to take actions by written consent;

•stockholders cannot call a special meeting of stockholders; and

•stockholders must give advance notice to nominate directors or submit proposals for consideration at stockholder meetings.

In addition, we are subject to the anti-takeover provisions of Section 203 of the Delaware General Corporation Law, which regulates corporate acquisitions by prohibiting Delaware corporations from engaging in specified business combinations with particular stockholders of those companies. These provisions could discourage potential acquisition proposals and could delay or prevent a change in control transaction. They could also have the effect of discouraging others from making tender offers for our common stock, including transactions that may be in your best interests. These provisions may also prevent changes in our management or limit the price that investors are willing to pay for our stock.

Our bylaws designate the federal courts of the United States as the exclusive forum for certain litigation that may be initiated by our stockholders, which could limit our stockholders' ability to obtain a favorable judicial forum for disputes with us.

Pursuant to our bylaws, unless we consent in writing to the selection of an alternative forum, to the fullest extent provided by law, the federal district courts of the United States is the sole and exclusive forum for the resolution of any complaint asserting a cause of action arising under the Securities Act of 1933, as amended, which we refer to as the Federal Forum Provision. In addition, our bylaws provide that any person or entity holding, owning or otherwise acquiring any interest in any of our securities will be deemed to have notice or and consented to the Federal Forum Provision. The Federal Forum

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Provision may impose additional litigation costs on stockholders who assert the provision is not enforceable and may impose more general additional litigation costs in pursuing any such claims. Additionally, the Federal Forum Provision in our bylaws may limit our stockholders' ability to obtain a favorable judicial forum for disputes with us. In addition, while the Delaware Supreme Court ruled in March 2020 that federal forum selection provisions purporting to require claims under the Securities Act be brought in federal court are "facially valid" under Delaware law, there is uncertainty as to whether other courts will enforce our Federal Forum Provision, and we may incur additional costs of litigation should such enforceability be challenged. If the Federal Forum Provision is found to be unenforceable in an action, we may incur additional costs associated with resolving such an action. The Federal Forum Provision may also impose additional litigation costs on stockholders who assert that the provision is not enforceable or invalid. The U.S. federal courts may also reach different judgments or results than would other courts, including courts where a stockholder considering an action may be located or would otherwise choose to bring the action, and such judgments may be more or less favorable to us than our stockholders.

If we fail to maintain proper and effective internal controls, our ability to produce accurate financial statements on a timely basis could be impaired.

We are subject to the reporting requirements of the Exchange Act, the Sarbanes-Oxley Act of 2002, the Dodd-Frank Wall Street Reform and Consumer Protection Act of 2010, and the rules and regulations of the NYSE. The Sarbanes-Oxley Act requires, among other things, that we maintain effective disclosure controls and procedures and internal control over financial reporting and perform system and process evaluation and testing of our internal control over financial reporting to allow management to report on the effectiveness of our internal control over financial reporting. This requires that we incur substantial professional fees and internal costs to maintain appropriate and necessary accounting and finance functions and that we expend significant management efforts.

We may discover weaknesses in our system of internal financial and accounting controls and procedures that could result in a material misstatement of our financial statements, and we may in the future discover additional weaknesses that require improvement. In addition, our internal control over financial reporting will not prevent or detect all errors and all fraud. A control system, no matter how well designed and operated, can provide only reasonable, not absolute, assurance that the control system's objectives will be met. Because of the inherent limitations in all control systems, no evaluation of controls can provide absolute assurance that misstatements due to error or fraud will not occur or that all control issues and instances of fraud will be detected.

If we are unable to maintain proper and effective internal controls, we may not be able to produce timely and accurate financial statements. If that were to happen, the market price of our stock could decline and we could be subject to sanctions or investigations by the NYSE, the SEC or other regulatory authorities.

We do not anticipate paying any cash dividends on our common stock in the foreseeable future and our stock may not appreciate in value.

We have not declared or paid cash dividends on our common stock to date. We currently intend to retain our future earnings, if any, to fund the development and growth of our business. In addition, the terms of any existing or future debt agreements may preclude us from paying dividends. There is no guarantee that shares of our common stock will appreciate in value or that the price at which our stockholders have purchased their shares will be able to be maintained.

We may need additional capital in the future to meet our financial obligations and to pursue our business objectives. Additional capital may not be available on favorable terms, or at all, which could compromise our ability to meet our financial obligations and grow our business.

While we anticipate that our existing cash, together with our cash flow from operations, will be sufficient to fund our operations for at least the next twelve months, we may need to raise additional capital to fund operations in the future or to meet various objectives, including developing future technologies and services, increasing working capital, acquiring businesses and responding to competitive pressures. If we seek to raise additional capital, it may not be available on favorable terms or may not be available at all. Lack of sufficient capital resources could significantly limit our ability to manage our business and to take advantage of business and strategic opportunities. Any additional capital raised through the sale of equity or debt securities with an equity component would dilute our stock ownership. If adequate additional funds are not available, we may be required to delay, reduce the scope of or eliminate material parts of our business strategy, including potential additional acquisitions or development of new technologies.

ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

Not applicable.

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ITEM 3. DEFAULTS UPON SENIOR SECURITIES

Not applicable.

ITEM 4. MINE SAFETY DISCLOSURES

Not applicable.

ITEM 5. OTHER INFORMATION

Not applicable.

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ITEM 6. EXHIBITS

Exhibit Number		Description of Document
3.1		Amended and Restated Certificate of Incorporation of the Registrant (incorporated herein by reference to Exhibit 3.1 of the Company's Current Report on Form 8-K (File No. 001-35940), filed with the Securities and Exchange Commission on May 29, 2013).
3.2		Amended and Restated Bylaws of the Registrant (incorporated herein by reference to Exhibit 3.1 of the Company's Current Report on Form 8-K (File No. 001-35940), filed with the Securities and Exchange Commission on February 22, 2021).
4.1		Specimen stock certificate evidencing shares of Common Stock (incorporated herein by reference to Exhibit 4.2 of the Company's Amendment No. 2 to the Registration Statement on Form S-1 (File No. 333-187865), filed with the Securities and Exchange Commission on May 9, 2013).
31.1	*	Certification of Principal Executive Officer under Section 302 of the Sarbanes-Oxley Act.
31.2	*	Certification of Principal Financial Officer under Section 302 of the Sarbanes-Oxley Act.
32.1	**	Certifications of Principal Executive Officer and Principal Financial Officer under Section 906 of the Sarbanes-Oxley Act.
101.INS	*	Inline XBRL Instance Document - the instance document does not appear in the Interactive Data File as its XBRL tags are embedded within the Inline XBRL document
101.SCH	*	Inline XBRL Taxonomy Extension Schema Document
101.CAL	*	Inline XBRL Taxonomy Extension Calculation Linkbase Document
101.DEF	*	Inline XBRL Taxonomy Extension Definition Linkbase Document
101.LAB	*	Inline XBRL Taxonomy Extension Label Linkbase Document
101.PRE	*	Inline XBRL Taxonomy Extension Presentation Linkbase Document
104	*	Cover Page Interactive Data File (formatted as Inline XBRL and contained in Exhibit 101)

*    Filed herewith.

**    These certifications are being furnished solely to accompany this quarterly report pursuant to 18 U.S.C. Section 1350, and are not being filed for purposes of Section 18 of the Securities Exchange Act of 1934, as amended, and are not to be incorporated by reference into any filing of the registrant, whether made before or after the date hereof, regardless of any general incorporation language in such filing.

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

		CHANNELADVISOR CORPORATION
Date:	August 5, 2021	By:	/s/ Richard F. Cornetta
			Richard F. Cornetta
			Chief Financial Officer
			(On behalf of the Registrant and as Principal Financial Officer)

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EX-31.1

Exhibit 31.1

CERTIFICATION

I, David J. Spitz, certify that:

1.I have reviewed this Quarterly Report on Form 10-Q of ChannelAdvisor Corporation;

2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a)Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b)Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c)Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d)Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a)All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b)Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date:	August 5, 2021	By:	/s/ David J. Spitz
			David J. Spitz
			Chief Executive Officer
			(principal executive officer)

EX-31.2

Exhibit 31.2

CERTIFICATION

I, Richard F. Cornetta, certify that:

1.I have reviewed this Quarterly Report on Form 10-Q of ChannelAdvisor Corporation;

2.Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3.Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4.The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a)Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b)Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c)Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d)Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and

5.The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):

a)All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and

b)Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date:	August 5, 2021	By:	/s/ Richard F. Cornetta
			Richard F. Cornetta
			Chief Financial Officer
			(principal financial officer)

EX-32.1

Exhibit 32.1

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report on Form 10-Q of ChannelAdvisor Corporation (the "Company”) for the quarterly period ended June 30, 2021, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), each of the undersigned officers hereby certifies, pursuant to Rule 13a-14(b) of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that, to such officer’s knowledge:

(1)The Report fully complies with the requirements of Section 13(a) or 15(d) of the Exchange Act; and

(2)The information contained in the Report fairly presents, in all material respects, the financial condition of the Company as of the end of the period covered by the Report and results of operations of the Company for the period covered by the Report.

/s/ David J. Spitz	/s/ Richard F. Cornetta
David J. Spitz	Richard F. Cornetta
Chief Executive Officer	Chief Financial Officer
August 5, 2021	August 5, 2021

The foregoing certification is being furnished solely pursuant to 18 U.S.C. Section 1350, is not being “filed” by the Company as part of the Report or as a separate disclosure document and is not to be incorporated by reference into any filing of the Company under the Securities Act of 1933, as amended, or the Securities Exchange Act of 1934, as amended (whether made before or after the date of the Report), irrespective of any general incorporation language contained in such filing.

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Cover - shares	6 Months Ended
	Jun. 30, 2021	Jul. 30, 2021
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2021
Document Transition Report	false
Entity File Number	001-35940
Entity Registrant Name	CHANNELADVISOR CORPORATION
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	56-2257867
Entity Address, Address Line One	3025 Carrington Mill Boulevard
Entity Address, City or Town	Morrisville
Entity Address, State or Province	NC
Entity Address, Postal Zip Code	27560
City Area Code	919
Local Phone Number	228-4700
Title of 12(b) Security	Common Stock, $0.001 par value
Trading Symbol	ECOM
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding (in shares)		29,833,225
Amendment Flag	false
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q2
Entity Central Index Key	0001169652
Current Fiscal Year End Date	--12-31

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CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Current assets:
Cash and cash equivalents	$ 90,351	$ 71,545
Accounts receivable, net of allowance of $407 and $417 as of June 30, 2021 and December 31, 2020, respectively	25,261	24,705
Prepaid expenses and other current assets	15,209	13,874
Total current assets	130,821	110,124
Operating lease right of use assets	6,302	8,141
Property and equipment, net	7,898	8,707
Goodwill	30,990	30,990
Intangible assets, net	3,585	4,155
Deferred contract costs, net of current portion	16,291	14,040
Long-term deferred tax assets, net	4,426	3,551
Other assets	886	953
Total assets	201,199	180,661
Current liabilities:
Accounts payable	818	158
Accrued expenses	15,837	14,008
Deferred revenue	27,040	22,819
Other current liabilities	5,717	6,029
Total current liabilities	49,412	43,014
Long-term operating leases, net of current portion	2,944	5,394
Other long-term liabilities	1,688	2,162
Total liabilities	54,044	50,570
Commitments and contingencies
Stockholders' equity:
Preferred stock, $0.001 par value, 5,000,000 shares authorized, no shares issued and outstanding as of June 30, 2021 and December 31, 2020	0	0
Common stock, $0.001 par value, 100,000,000 shares authorized, 29,830,607 and 29,020,424 shares issued and outstanding as of June 30, 2021 and December 31, 2020, respectively	30	29
Additional paid-in capital	295,950	288,842
Accumulated other comprehensive loss	(1,157)	(1,095)
Accumulated deficit	(147,668)	(157,685)
Total stockholders' equity	147,155	130,091
Total liabilities and stockholders' equity	$ 201,199	$ 180,661

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CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Current assets:
Allowance for doubtful accounts receivable, current	$ 407	$ 417
Stockholders' equity:
Preferred stock, par value (in dollars per share)	$ 0.001	$ 0.001
Preferred stock, shares authorized (in shares)	5,000,000	5,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	100,000,000	100,000,000
Common stock, shares issued (in shares)	29,830,607	29,020,424
Common stock, shares outstanding (in shares)	29,830,607	29,020,424

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UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Revenue	$ 41,543	$ 37,443	$ 80,709	$ 69,475
Cost of revenue	9,533	7,053	17,941	14,116
Gross profit	32,010	30,390	62,768	55,359
Operating expenses:
Sales and marketing	15,159	12,619	29,791	24,959
Research and development	5,908	4,543	11,435	9,344
General and administrative	6,835	6,033	11,717	11,768
Total operating expenses	27,902	23,195	52,943	46,071
Income from operations	4,108	7,195	9,825	9,288
Other (expense) income:
Interest (expense) income, net	(33)	85	(66)	211
Other (expense) income, net	(5)	31	(135)	39
Total other (expense) income	(38)	116	(201)	250
Income before income taxes	4,070	7,311	9,624	9,538
Income tax (benefit) expense	(490)	325	(393)	545
Net income	$ 4,560	$ 6,986	$ 10,017	$ 8,993
Net income per share:
Basic (in dollars per share)	$ 0.15	$ 0.25	$ 0.34	$ 0.32
Diluted (in dollars per share)	$ 0.15	$ 0.24	$ 0.32	$ 0.31
Weighted average common shares outstanding:
Basic	29,764,013	28,489,086	29,530,369	28,325,426
Diluted	31,402,695	29,700,524	31,269,427	29,362,886

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UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Statement of Comprehensive Income [Abstract]
Net income	$ 4,560	$ 6,986	$ 10,017	$ 8,993
Other comprehensive income (loss):
Foreign currency translation adjustments	88	299	(62)	(501)
Total comprehensive income	$ 4,648	$ 7,285	$ 9,955	$ 8,492

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UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020
Cash flows from operating activities
Net income	$ 10,017	$ 8,993
Adjustments to reconcile net income to cash and cash equivalents provided by operating activities:
Depreciation and amortization	3,479	3,000
Bad debt expense	47	504
Stock-based compensation expense	6,624	5,470
Deferred income taxes	(893)	532
Other items, net	(1,760)	(420)
Changes in assets and liabilities:
Accounts receivable	(527)	(2,426)
Prepaid expenses and other assets	(318)	(850)
Deferred contract costs	(3,282)	(901)
Accounts payable and accrued expenses	(249)	1,177
Deferred revenue	4,448	(1,623)
Cash and cash equivalents provided by operating activities	17,586	13,456
Cash flows from investing activities
Purchases of property and equipment	(494)	(580)
Payment of software development costs	(1,631)	(1,407)
Cash and cash equivalents used in investing activities	(2,125)	(1,987)
Cash flows from financing activities
Repayment of finance leases	(8)	(1,415)
Proceeds from exercise of stock options	3,722	2,134
Payment of statutory tax withholding related to net-share settlement of restricted stock units	(342)	0
Cash and cash equivalents provided by financing activities	3,372	719
Effect of currency exchange rate changes on cash and cash equivalents	(27)	(98)
Net increase in cash and cash equivalents	18,806	12,090
Cash and cash equivalents, beginning of period	71,545	51,785
Cash and cash equivalents, end of period	90,351	63,875
Supplemental disclosure of cash flow information
Cash paid for interest	36	105
Cash paid for income taxes, net	338	163
Supplemental disclosure of noncash investing and financing activities
Accrued statutory tax withholding related to net-share settlement of restricted stock units	2,896	1,639
Accrued capital expenditures	$ 16	$ 203

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Description of the Business	6 Months Ended
	Jun. 30, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
DESCRIPTION OF THE BUSINESS	DESCRIPTION OF THE BUSINESSChannelAdvisor Corporation ("ChannelAdvisor" or the "Company") was incorporated in the state of Delaware and capitalized in June 2001. The Company began operations in July 2001. ChannelAdvisor is a leading multichannel commerce platform whose mission is to connect and optimize the world's commerce. For over two decades, ChannelAdvisor has helped brands and retailers worldwide improve their online performance by expanding sales channels, connecting with consumers across the entire buying cycle, optimizing their operations for peak performance and providing actionable analytics to improve competitiveness. Thousands of customers depend on ChannelAdvisor to securely power their e-commerce operations on hundreds of channels, including Amazon, eBay, Facebook, Google and Walmart. The Company is headquartered in Morrisville, North Carolina and maintains sales, service, support and research and development offices in various domestic and international locations.

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Significant Accounting Policies

6 Months Ended

Jun. 30, 2021

Accounting Policies [Abstract]

SIGNIFICANT ACCOUNTING POLICIES

SIGNIFICANT ACCOUNTING POLICIES

Principles of Consolidation

The accompanying condensed consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation.

Interim Condensed Consolidated Financial Information

The accompanying condensed consolidated financial statements and footnotes have been prepared in accordance with generally accepted accounting principles in the United States of America, or U.S. GAAP, as contained in the Financial Accounting Standards Board, or FASB, Accounting Standards Codification, or ASC, for interim financial information. In the opinion of management, the interim financial information includes all adjustments of a normal recurring nature necessary for a fair presentation of financial position, the results of operations, comprehensive loss and cash flows. The results of operations for the three and six months ended June 30, 2021 are not necessarily indicative of the results for the full year or the results for any future periods, especially in light of the ongoing impacts, and potential future effects of, the COVID-19 pandemic on the Company’s business, operations and financial performance. These unaudited interim financial statements should be read in conjunction with the audited financial statements and related footnotes for the year ended December 31, 2020, or fiscal 2020, which are included in the Company's Annual Report on Form 10-K for fiscal 2020. There have been no material changes to the Company's significant accounting policies from those described in the footnotes to the audited financial statements contained in the Company's Annual Report on Form 10-K for fiscal 2020. 

Recent Accounting Pronouncements

The Company has reviewed new accounting pronouncements that were issued during the six months ended June 30, 2021 and does not believe that these pronouncements are applicable to the Company, or that they will have a material impact on its financial position or results of operations.

Use of Estimates

The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the amounts reported in the condensed consolidated financial statements and accompanying notes. Actual results could differ from those estimates.

On an ongoing basis, the Company evaluates its estimates, including those related to the accounts receivable allowance, the useful lives of long-lived assets and other intangible assets, income taxes, assumptions used for purposes of determining stock-based compensation, leases, including estimating lease terms and extensions, and revenue recognition, including standalone selling prices for contracts with multiple performance obligations and the expected period of benefit for deferred contract costs, among others. Estimates and assumptions are also required to value assets acquired and liabilities assumed as well as contingent consideration, where applicable, in conjunction with business combinations. The Company bases its estimates on historical experience and on various other assumptions that it believes to be reasonable, the results of which form the basis for making judgments about the carrying value of assets and liabilities.

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Stockholders' Equity

6 Months Ended

Jun. 30, 2021

Stockholders' Equity Attributable to Parent [Abstract]

STOCKHOLDERS' EQUITY

STOCKHOLDERS' EQUITY

The following tables summarize quarterly stockholders' equity activity for the six-month periods ended June 30, 2021 and 2020 (in thousands, except number of shares):

	Quarterly Activity For The Six Months Ended June 30, 2021
	Common Stock			Additional Paid-In Capital		Accumulated Other Comprehensive Loss		Accumulated Deficit		Total Stockholders' Equity
	Shares	Amount
Balance, December 31, 2020	29,020,424	$	29	$	288,842	$	(1,095)	$	(157,685)	$	130,091
Exercise of stock options and vesting of restricted stock units	802,270	1		3,586		—		—		3,587
Stock-based compensation expense	—	—		3,048		—		—		3,048
Statutory tax withholding related to net-share settlement of restricted stock units	(89,842)	—		(2,061)		—		—		(2,061)
Net income	—	—		—		—		5,457		5,457
Foreign currency translation adjustments	—	—		—		(150)		—		(150)
Balance, March 31, 2021	29,732,852	30		293,415		(1,245)		(152,228)		139,972
Exercise of stock options and vesting of restricted stock units	146,164	—		136		—		—		136
Stock-based compensation expense	—	—		3,576		—		—		3,576
Statutory tax withholding related to net-share settlement of restricted stock units	(48,409)	—		(1,177)		—		—		(1,177)
Net income	—	—		—		—		4,560		4,560
Foreign currency translation adjustments	—	—		—		88		—		88
Balance, June 30, 2021	29,830,607	$	30	$	295,950	$	(1,157)	$	(147,668)	$	147,155

	Quarterly Activity For The Six Months Ended June 30, 2020
	Common Stock			Additional Paid-In Capital		Accumulated Other Comprehensive Loss		Accumulated Deficit		Total Stockholders' Equity
	Shares	Amount
Balance, December 31, 2019	28,077,469	$	28	$	278,111	$	(1,740)	$	(176,750)	$	99,649
Cumulative effect of accounting change (1)	—	—		—		—		240		240
Exercise of stock options and vesting of restricted stock units	394,998	—		87		—		—		87
Stock-based compensation expense	—	—		2,914		—		—		2,914
Statutory tax withholding related to net-share settlement of restricted stock units	(107,398)	—		(980)		—		—		(980)
Net income	—	—		—		—		2,007		2,007
Foreign currency translation adjustments	—	—		—		(800)		—		(800)
Balance, March 31, 2020	28,365,069	28		280,132		(2,540)		(174,503)		103,117
Exercise of stock options and vesting of restricted stock units	330,692	1		2,046		—		—		2,047
Stock-based compensation expense	—	—		2,556		—		—		2,556
Statutory tax withholding related to net-share settlement of restricted stock units	(48,675)	—		(659)		—		—		(659)
Net income	—	—		—		—		6,986		6,986
Foreign currency translation adjustments	—	—		—		299		—		299
Balance, June 30, 2020	28,647,086	$	29	$	284,075	$	(2,241)	$	(167,517)	$	114,346

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Goodwill and Intangible Assets

6 Months Ended

Jun. 30, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Intangible Assets

GOODWILL AND INTANGIBLE ASSETS

The Company has acquired intangible assets in connection with its business acquisitions. These assets were recorded at their estimated fair values at the acquisition date and are being amortized over their respective estimated useful lives using the straight-line method. The estimated useful lives and amortization methodology used in computing amortization are as follows:

	Estimated Useful Life	Amortization Methodology
Customer relationships	7 years	Straight-line
Acquired technology	7 years	Straight-line

Amortization expense associated with the Company's intangible assets was $0.3 million and $0.2 million for the three months ended June 30, 2021 and 2020, respectively, and $0.6 million and $0.3 million for the six months ended June 30, 2021 and 2020, respectively.

There were no changes to the Company's goodwill during the six months ended June 30, 2021.

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Fair Value of Measurements

6 Months Ended

Jun. 30, 2021

Fair Value Disclosures [Abstract]

Fair Value of Measurements

FAIR VALUE OF MEASUREMENTS

The Company uses a three-tier fair value hierarchy to classify and disclose all assets and liabilities measured at fair value on a recurring basis, as well as assets and liabilities measured at fair value on a non-recurring basis, in periods subsequent to their initial measurement. The hierarchy requires the Company to use observable inputs when available, and to minimize the use of unobservable inputs when determining fair value. The three tiers are defined as follows:

•Level 1. Observable inputs based on unadjusted quoted prices in active markets for identical assets or liabilities;

•Level 2. Inputs, other than quoted prices in active markets, that are observable either directly or indirectly; and

•Level 3. Unobservable inputs for which there is little or no market data, which require the Company to develop its own assumptions.

The carrying amounts of certain of the Company's financial instruments, including cash and cash equivalents, accounts receivable, accounts payable and accrued expenses approximate their respective fair values due to their short-term nature.

The acquisition of Blueboard, a private limited company organized under the laws of France ("BlueBoard"), on July 23, 2020 included a contingent consideration arrangement that allows for payments of up to $3.0 million based upon the achievement of specified annual revenue targets through July 2023. Contingent consideration was measured at fair value at the acquisition date and is remeasured at fair value at each reporting date until the contingency is resolved.

The fair value of the contingent consideration related to the BlueBoard acquisition was estimated utilizing Black-Scholes option pricing models in which various scenarios for achievement of the financial targets and resulting payouts are then discounted to determine the present value of the resulting liability. Key assumptions used in the measurement of fair value of contingent consideration include the forecasted revenue growth, revenue volatility and discount rates among other assumptions. Changes in any valuation inputs in isolation may result in a significantly lower or higher fair value measurement in the future. The fair value of the contingent consideration is recorded in "Other long-term liabilities" on the Company's consolidated balance sheet. Changes in the fair value of contingent consideration are recognized within general and administrative expenses in the Company’s consolidated statements of operations.

The following table presents the changes to the Company's liability for acquisition-related contingent consideration for the six months ended June 30, 2021 (in thousands):

Balance as of December 31, 2020	$	1,330
Change in fair value	(1,325)
Balance as of June 30, 2021	$	5

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Capitalized Software Development Costs	6 Months Ended
	Jun. 30, 2021
Property, Plant and Equipment [Abstract]
CAPITALIZED SOFTWARE DEVELOPMENT COSTS	CAPITALIZED SOFTWARE DEVELOPMENT COSTSCapitalized software development costs related to creating internally developed software and implementing software purchased for internal use are included in property and equipment in the accompanying condensed consolidated balance sheets. The Company capitalized software development costs of $0.9 million and $0.7 million during the three months ended June 30, 2021 and 2020, respectively, and $1.6 million and $1.4 million during the six months ended June 30, 2021 and 2020, respectively. Amortization expense related to capitalized internally developed software was $0.7 million and $0.4 million for the three months ended June 30, 2021 and 2020, respectively, and $1.3 million and $0.8 million for the six months ended June 30, 2021 and 2020, respectively, and is included in cost of revenue or general and administrative expense in the accompanying condensed consolidated statements of operations, depending upon the nature of the software development project. The net book value of capitalized internally developed software was $4.5 million and $4.2 million at June 30, 2021 and December 31, 2020, respectively.

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Line of Credit	6 Months Ended
	Jun. 30, 2021
Debt Disclosure [Abstract]
Line of Credit	LINE OF CREDITOn August 5, 2020, the Company established a $25.0 million revolving credit facility with a commercial lender that is available for use until August 5, 2023. Proceeds from borrowings under the credit facility may be used for working capital and general corporate purposes, including acquisitions. Up to $10.0 million of the facility is available for letters of credit. Additionally, the Company may request increases to the facility, subject to the consent of the lender, provided that the aggregate amount of such increases during the term do not exceed $10.0 million. Amounts borrowed under the facility will bear interest equal to either a base rate plus 2.25% per annum or LIBOR plus 3.25% per annum. The Company will pay a fee on all outstanding letters of credit at a rate of 3.25% per annum. In addition, the Company will pay a quarterly fee at a rate of 0.50% per annum on the undrawn portion of the facility. As collateral for extension of credit under the facility, the Company granted security interests in substantially all of its assets and those of one of its subsidiaries. The agreement for the credit facility contains customary representations and warranties and subjects the Company to affirmative and negative covenants. As of June 30, 2021, the Company had not drawn on, or issued any letters of credit under, the credit facility.

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Revenue from Contracts with Customers

6 Months Ended

Jun. 30, 2021

Revenue from Contract with Customer [Abstract]

REVENUE FROM CONTRACTS WITH CUSTOMERS

REVENUE FROM CONTRACTS WITH CUSTOMERS

Revenue Recognition and Disaggregation of Revenue

The Company derives the majority of its revenue from subscription fees paid for access to and usage of its SaaS solutions for a specified contract term. A customer typically pays a recurring subscription fee based on a specified minimum amount of gross merchandise value, or GMV, or advertising spend that the customer expects to process through the Company's platform. Subscription fees may also include implementation fees such as launch assistance and training fees. The remaining portion of a customer's fee is variable and is based on a specified percentage of GMV or advertising spend processed through the Company's platform in excess of the customer's specified minimum GMV or advertising spend amount. In most cases, the specified percentage of excess GMV or advertising spend on which the variable fee is based is fixed and does not vary depending on the amount of the excess. Subscription fees are billed in advance of the subscription term and are due in accordance with contract terms, which generally provide for payment within 30 days. Variable fees are subject to the same payment terms, although they are generally billed at the end of the period in which they are incurred. The Company also generates revenue from its solutions that allow brands to direct potential consumers from their websites and digital marketing campaigns to authorized resellers. The majority of the Company's contracts have a one year term. The Company's contractual arrangements include performance, termination and cancellation provisions, but do not provide for refunds. Customers do not have the contractual right to take possession of the Company's software at any time. Sales taxes collected from customers and remitted to government authorities are excluded from revenue.

The Company's customers are categorized as follows:

Retailers. The Company generally categorizes a customer as a retailer if it primarily focuses on selling third-party products.

Brands. The Company generally categorizes a customer as a brand if it primarily focuses on selling its own proprietary products.

Other. Other is primarily comprised of strategic partnerships.

The following table summarizes revenue disaggregation by customer type for the three and six months ended June 30, 2021 and 2020 (in thousands):

	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Retailers	$	22,516	$	23,273	$	44,293	$	42,988
Brands	15,956		11,494		30,205		21,780
Other	3,071		2,676		6,211		4,707
	$	41,543	$	37,443	$	80,709	$	69,475

Contracts with Multiple Performance Obligations

Customers may elect to purchase a subscription to multiple modules, multiple modules with multiple service levels, or, for certain of the Company's solutions, multiple brands or geographies. The Company evaluates such contracts to determine whether the services to be provided are distinct and accordingly should be accounted for as separate performance obligations. If the Company determines that a contract has multiple performance obligations, the transaction price, which is the total price of the contract, is allocated to each performance obligation based on a relative standalone selling price method. The Company estimates standalone selling price based on observable prices in past transactions for which the product offering subject to the performance obligation has been sold separately. As the performance obligations are satisfied, revenue is recognized as discussed above.

Transaction Price Allocated to Future Performance Obligations

As the Company typically enters into contracts with customers for a twelve-month subscription term, a substantial majority of its performance obligations that have not yet been satisfied as of June 30, 2021 are part of a contract that has an original expected duration of one year or less. For contracts with an original expected duration of greater than one year, the aggregate transaction price allocated to the unsatisfied performance obligations was $32.7 million as of June 30, 2021, of which $21.0 million is expected to be recognized as revenue over the next twelve months.

Deferred Revenue

Deferred revenue generally represents the unearned portion of subscription fees. Deferred revenue is recorded when fees are invoiced in advance of performance. Deferred amounts are generally recognized within one year. Deferred revenue is included in the accompanying condensed consolidated balance sheets under "Total current liabilities," net of any long-term portion that is included in "Other long-term liabilities." The following table summarizes deferred revenue activity for the six months ended June 30, 2021 (in thousands):

	Balance, beginning of period		Net additions	Revenue recognized from deferred revenue	Balance, end of period
Deferred revenue	$	23,301	66,808	(62,292)	$	27,817

Of the $80.7 million of revenue recognized in the six months ended June 30, 2021, $19.2 million was included in deferred revenue at January 1, 2021.

Costs to Obtain Contracts

The Company capitalizes sales commissions and a portion of other incentive compensation costs that are directly related to obtaining customer contracts and that would not have been incurred if the contract had not been obtained. These costs are included in the accompanying condensed consolidated balance sheets and are classified as "Prepaid expenses and other current assets," net of any long-term portion that is included in "Deferred contract costs, net of current portion." As of June 30, 2021, $8.3 million was included in "Prepaid expenses and other current assets." Deferred contract costs are amortized to sales and marketing expense over the expected period of benefit, which the Company has determined to be five years based on the estimated customer relationship period. The following table summarizes deferred contract cost activity for the six months ended June 30, 2021 (in thousands):

	Balance, beginning of period		Additions	Amortized costs (1)	Balance, end of period
Deferred contract costs	$	21,333	7,441	(4,189)	$	24,585

(1) Includes contract costs amortized to sales and marketing expense during the period and the impact from foreign currency exchange rate fluctuations.

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Stock-Based Compensation

6 Months Ended

Jun. 30, 2021

Share-based Payment Arrangement [Abstract]

STOCK-BASED COMPENSATION

STOCK-BASED COMPENSATION

In February 2020, the Company’s Compensation Committee implemented changes to the equity compensation program for the Company’s executive officers. Beginning in 2020, 50% of each executive's equity awards were granted in the form of performance-based vesting restricted stock units, or PSUs, that are eligible for vesting only if the Company achieves pre-defined targets set by the Compensation Committee for the Company’s combined year-over-year revenue growth and adjusted earnings before interest, tax, depreciation and amortization, or EBITDA, margin over a two-year measurement period, subject to the executive’s continued service with the Company. For any PSUs granted in 2020 to vest, revenue growth must be positive over the performance period. Vesting of the PSU awards is based on a sliding scale of actual performance against the pre-defined goals. The sliding scale ranges from zero vesting and forfeiture of the awards if the Company does not achieve the performance threshold, to an award of up to 150% and 200% of the target number of awards for fiscal 2020 and 2021 grants, respectively, if the pre-defined maximum performance is achieved. As soon as reasonably practicable after the completion of the performance period, the Compensation Committee will determine the level of attainment of the performance goal and if the performance threshold is achieved, on the second anniversary of the grant date, subject to the executive’s continued service as of that date, 50% of the earned PSU awards will vest and, on the third anniversary of the grant date, the remaining 50% of earned PSU awards will vest, subject to the executive’s continued service as of that date. The Committee may make adjustments to the manner in which the achievement is determined as it deems equitable and appropriate to exclude the effect of unusual, non-recurring or infrequent matters, transactions or events affecting the Company or its consolidated financial statements; changes in accounting principles, practices or policies or in tax laws or other laws or requirements; or other similar events, matters or changed circumstances. Each adjustment, if any, shall be made solely for the purpose of maintaining the intended economics of the award in light of changed circumstances to prevent the dilution or enlargement of the executive’s rights with respect to the PSUs. The fair value of the PSU awards is determined using the Company’s stock price on the grant date. These awards are equity classified and will be expensed over the requisite service period based on the extent to which achievement of the performance metrics is probable.

The Company recognizes stock-based compensation expense using the accelerated attribution method, net of estimated forfeitures, in which compensation cost for each vesting tranche in an award is recognized ratably from the service inception date to the vesting date for that tranche.

Stock-based compensation expense is included in the following line items in the accompanying condensed consolidated statements of operations for the three and six months ended June 30, 2021 and 2020 (in thousands):

	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Cost of revenue	$	264	$	238	$	496	$	557
Sales and marketing	996		777		1,816		1,517
Research and development	690		543		1,302		1,223
General and administrative	1,626		998		3,010		2,173
Total stock-based compensation expense	$	3,576	$	2,556	$	6,624	$	5,470

During the six months ended June 30, 2021, the Company granted the following share-based awards:

	Number of Shares Underlying Grant	Weighted Average Grant Date Fair Value
Restricted stock units	449,506	$	23.39
Performance stock units	71,932	$	23.88
Total share-based awards	521,438

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Net Income (Loss) Per Share

6 Months Ended

Jun. 30, 2021

Earnings Per Share [Abstract]

NET LOSS PER SHARE

NET INCOME PER SHAREBasic net income per share is calculated by dividing net income by the weighted-average number of shares of common stock outstanding for the period. Diluted net income per share is calculated giving effect to all potentially dilutive shares of common stock, including stock options and restricted stock units. The dilutive effect of outstanding awards is reflected in

diluted earnings per share by application of the treasury stock method.

The following table summarizes the calculation of basic and diluted net income per share (in thousands, except share and per share data):

	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Basic:
Net income	$	4,560	$	6,986	$	10,017	$	8,993
Weighted average common shares outstanding, basic	29,764,013		28,489,086		29,530,369		28,325,426
Basic net income per share	$	0.15	$	0.25	$	0.34	$	0.32
Diluted:
Net income	$	4,560	$	6,986	$	10,017	$	8,993
Weighted average common shares outstanding, basic	29,764,013		28,489,086		29,530,369		28,325,426
Dilutive effect of:
Stock options	572,474		259,774		604,491		154,854
Unvested restricted stock units	1,066,208		951,664		1,134,567		882,606
Weighted average common shares outstanding, diluted	31,402,695		29,700,524		31,269,427		29,362,886
Diluted net income per share	$	0.15	$	0.24	$	0.32	$	0.31

The following equity instruments have been excluded from the calculation of diluted net income per share because the effect is anti-dilutive:

	Three Months Ended June 30,		Six Months Ended June 30,
	2021	2020	2021	2020
Stock options	22,229	603,838	22,541	1,329,915
Restricted stock units	20,796	25,783	20,852	17,878

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Income Taxes

6 Months Ended

Jun. 30, 2021

Income Tax Disclosure [Abstract]

Income Taxes

INCOME TAXES

At the end of each interim reporting period, the Company estimates its effective income tax rate expected to be applicable for the full year. This estimate is used to determine the income tax provision or benefit on a year-to-date basis and may change in subsequent interim periods.

The Company's effective tax rate was (12.0)% and 4.4% for the three months ended June 30, 2021 and 2020, respectively, and (4.1)% and 5.7% for the six months ended June 30, 2021 and 2020, respectively. The tax benefit and expense for each of the periods was based on U.S. federal, state, local and foreign income taxes. The Company’s effective tax rate for these periods is lower than the U.S. federal statutory rate of 21% primarily due to the utilization of operating loss carryforwards which are subject to a valuation allowance. As a result of uncertainties relating to the timing and sufficiency of future taxable income in certain tax jurisdictions in which the Company operates, the Company cannot recognize the tax benefit of operating loss carryforwards generated in those jurisdictions until the operating loss carryforwards are utilized. The decrease in the effective tax rate for the three and six months ended June 30, 2021 compared with the same periods in the prior year was primarily due to the revaluation of the Company's UK deferred tax assets resulting from the enactment of an increase in the UK statutory tax rate, as well as an increase in U.S. state income tax benefits resulting from tax deductions from stock-based compensation. Additionally, the decrease was partially due to an increase in forecasted income for the year ending December 31, 2021 that is not expected to result in a corresponding increase to income tax expense due to the tax benefit recognized from the utilization of operating loss carryforwards that are offset by a valuation allowance.

The American Rescue Plan Act, or ARP Act, was enacted on March 11, 2021. The ARP Act includes provisions on taxes, health care, unemployment benefits, direct payments, state and local funding and other issues. Included in the tax provisions was an expansion of the limitations on the deduction of excessive executive compensation. The Coronavirus, Aid, Relief and Economic Security Act, or CARES Act, was enacted on March 27, 2020.  The CARES Act includes both income tax and non-income tax measures to assist companies. Some of the key income tax-related provisions of the CARES Act include the elimination of the 80% limitation on certain net operating loss carryforwards and allowing net operating loss carrybacks, an increase to the interest expense deduction limit, passage of technical corrections to the Tax Cuts and Jobs Act of 2017, and

acceleration of the Alternative Minimum Tax Credit refund. In addition to the income tax provisions, the ARP Act and CARES Act include non-income tax provisions, such as loan programs, penalty and interest-free deferral of certain tax payments, and payroll tax credits. The Company has decided not to apply for any of the loan programs in either Act. The Company is currently benefiting from penalty and interest-free tax payment deferral of the 2020 U.S. Social Security tax payments as provided in the CARES Act. The Company is also monitoring COVID-19 tax relief developments in U.S. states and foreign jurisdictions where the Company has operations.

The corporate tax changes in the ARP Act and CARES Act had an insignificant impact on the income tax provision for the three and six months ended June 30, 2021.

The Company recorded a valuation allowance against all of its U.S. deferred tax assets as of June 30, 2021. The Company intends to continue maintaining a full valuation allowance on its U.S. deferred tax assets until there is sufficient evidence to support the reversal of all or some portion of the allowance. However, given its current earnings and anticipated future earnings, there is a reasonable possibility that within the next 12 months, sufficient positive evidence may become available to allow it to reach a conclusion that a portion of the valuation allowance will no longer be needed. Release of the valuation allowance would result in the recognition of certain deferred tax assets and a decrease to income tax expense for the period the release is recorded. However, the Company is currently unable to determine the exact timing and amount of the valuation allowance release.

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Segment and Geographic Information

6 Months Ended

Jun. 30, 2021

Segment Reporting [Abstract]

SEGMENT AND GEOGRAPHIC INFORMATION

SEGMENT AND GEOGRAPHIC INFORMATION

Operating segments are defined as components of an enterprise for which discrete financial information is available that is evaluated regularly by the chief operating decision maker, or CODM, for purposes of allocating resources and evaluating financial performance. The Company's CODM reviews financial information presented on a consolidated basis for purposes of allocating resources and evaluating financial performance. As such, the Company's operations constitute a single operating segment and one reportable segment.

Substantially all assets were held in the United States during the six months ended June 30, 2021 and the year ended December 31, 2020. The Company categorizes domestic and international revenue from customers based on their billing address. The following table summarizes revenue by geography for the three and six months ended June 30, 2021 and 2020 (in thousands):

	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Domestic	$	29,471	$	28,522	$	57,982	$	52,436
International	12,072		8,921		22,727		17,039
Total revenue	$	41,543	$	37,443	$	80,709	$	69,475

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Significant Accounting Policies (Policies)

6 Months Ended

Jun. 30, 2021

Accounting Policies [Abstract]

Principles of Consolidation

The accompanying condensed consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries. All intercompany accounts and transactions have been eliminated in consolidation.

Interim Condensed Consolidated Financial Information

The accompanying condensed consolidated financial statements and footnotes have been prepared in accordance with generally accepted accounting principles in the United States of America, or U.S. GAAP, as contained in the Financial Accounting Standards Board, or FASB, Accounting Standards Codification, or ASC, for interim financial information. In the opinion of management, the interim financial information includes all adjustments of a normal recurring nature necessary for a fair presentation of financial position, the results of operations, comprehensive loss and cash flows. The results of operations for the three and six months ended June 30, 2021 are not necessarily indicative of the results for the full year or the results for any future periods, especially in light of the ongoing impacts, and potential future effects of, the COVID-19 pandemic on the Company’s business, operations and financial performance. These unaudited interim financial statements should be read in conjunction with the audited financial statements and related footnotes for the year ended December 31, 2020, or fiscal 2020, which are included in the Company's Annual Report on Form 10-K for fiscal 2020. There have been no material changes to the Company's significant accounting policies from those described in the footnotes to the audited financial statements contained in the Company's Annual Report on Form 10-K for fiscal 2020.

Recent Accounting Pronouncements

The Company has reviewed new accounting pronouncements that were issued during the six months ended June 30, 2021 and does not believe that these pronouncements are applicable to the Company, or that they will have a material impact on its financial position or results of operations.

Use of Estimates

The preparation of financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the amounts reported in the condensed consolidated financial statements and accompanying notes. Actual results could differ from those estimates.

On an ongoing basis, the Company evaluates its estimates, including those related to the accounts receivable allowance, the useful lives of long-lived assets and other intangible assets, income taxes, assumptions used for purposes of determining stock-based compensation, leases, including estimating lease terms and extensions, and revenue recognition, including standalone selling prices for contracts with multiple performance obligations and the expected period of benefit for deferred contract costs, among others. Estimates and assumptions are also required to value assets acquired and liabilities assumed as well as contingent consideration, where applicable, in conjunction with business combinations. The Company bases its estimates on historical experience and on various other assumptions that it believes to be reasonable, the results of which form the basis for making judgments about the carrying value of assets and liabilities.

Fair Value Measurement

The Company uses a three-tier fair value hierarchy to classify and disclose all assets and liabilities measured at fair value on a recurring basis, as well as assets and liabilities measured at fair value on a non-recurring basis, in periods subsequent to their initial measurement. The hierarchy requires the Company to use observable inputs when available, and to minimize the use of unobservable inputs when determining fair value. The three tiers are defined as follows:

•Level 1. Observable inputs based on unadjusted quoted prices in active markets for identical assets or liabilities;

•Level 2. Inputs, other than quoted prices in active markets, that are observable either directly or indirectly; and

•Level 3. Unobservable inputs for which there is little or no market data, which require the Company to develop its own assumptions.

The carrying amounts of certain of the Company's financial instruments, including cash and cash equivalents, accounts receivable, accounts payable and accrued expenses approximate their respective fair values due to their short-term nature.

Deferred Revenue

Deferred revenue generally represents the unearned portion of subscription fees. Deferred revenue is recorded when fees are invoiced in advance of performance. Deferred amounts are generally recognized within one year. Deferred revenue is included in the accompanying condensed consolidated balance sheets under "Total current liabilities," net of any long-term portion that is included in "Other long-term liabilities."

Costs to Obtain Contracts

The Company capitalizes sales commissions and a portion of other incentive compensation costs that are directly related to obtaining customer contracts and that would not have been incurred if the contract had not been obtained. These costs are included in the accompanying condensed consolidated balance sheets and are classified as "Prepaid expenses and other current assets," net of any long-term portion that is included in "Deferred contract costs, net of current portion." As of June 30, 2021, $8.3 million was included in "Prepaid expenses and other current assets." Deferred contract costs are amortized to sales and marketing expense over the expected period of benefit, which the Company has determined to be five years based on the estimated customer relationship period.

Stock-Based Compensation

The Company recognizes stock-based compensation expense using the accelerated attribution method, net of estimated forfeitures, in which compensation cost for each vesting tranche in an award is recognized ratably from the service inception date to the vesting date for that tranche.

Earnings Per Share

Basic net income per share is calculated by dividing net income by the weighted-average number of shares of common stock outstanding for the period. Diluted net income per share is calculated giving effect to all potentially dilutive shares of common stock, including stock options and restricted stock units. The dilutive effect of outstanding awards is reflected in diluted earnings per share by application of the treasury stock method.

Income Taxes

At the end of each interim reporting period, the Company estimates its effective income tax rate expected to be applicable for the full year. This estimate is used to determine the income tax provision or benefit on a year-to-date basis and may change in subsequent interim periods.

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Stockholders' Equity (Tables)

6 Months Ended

Jun. 30, 2021

Stockholders' Equity Attributable to Parent [Abstract]

Schedule of Stockholders Equity

The following tables summarize quarterly stockholders' equity activity for the six-month periods ended June 30, 2021 and 2020 (in thousands, except number of shares):

	Quarterly Activity For The Six Months Ended June 30, 2021
	Common Stock			Additional Paid-In Capital		Accumulated Other Comprehensive Loss		Accumulated Deficit		Total Stockholders' Equity
	Shares	Amount
Balance, December 31, 2020	29,020,424	$	29	$	288,842	$	(1,095)	$	(157,685)	$	130,091
Exercise of stock options and vesting of restricted stock units	802,270	1		3,586		—		—		3,587
Stock-based compensation expense	—	—		3,048		—		—		3,048
Statutory tax withholding related to net-share settlement of restricted stock units	(89,842)	—		(2,061)		—		—		(2,061)
Net income	—	—		—		—		5,457		5,457
Foreign currency translation adjustments	—	—		—		(150)		—		(150)
Balance, March 31, 2021	29,732,852	30		293,415		(1,245)		(152,228)		139,972
Exercise of stock options and vesting of restricted stock units	146,164	—		136		—		—		136
Stock-based compensation expense	—	—		3,576		—		—		3,576
Statutory tax withholding related to net-share settlement of restricted stock units	(48,409)	—		(1,177)		—		—		(1,177)
Net income	—	—		—		—		4,560		4,560
Foreign currency translation adjustments	—	—		—		88		—		88
Balance, June 30, 2021	29,830,607	$	30	$	295,950	$	(1,157)	$	(147,668)	$	147,155

	Quarterly Activity For The Six Months Ended June 30, 2020
	Common Stock			Additional Paid-In Capital		Accumulated Other Comprehensive Loss		Accumulated Deficit		Total Stockholders' Equity
	Shares	Amount
Balance, December 31, 2019	28,077,469	$	28	$	278,111	$	(1,740)	$	(176,750)	$	99,649
Cumulative effect of accounting change (1)	—	—		—		—		240		240
Exercise of stock options and vesting of restricted stock units	394,998	—		87		—		—		87
Stock-based compensation expense	—	—		2,914		—		—		2,914
Statutory tax withholding related to net-share settlement of restricted stock units	(107,398)	—		(980)		—		—		(980)
Net income	—	—		—		—		2,007		2,007
Foreign currency translation adjustments	—	—		—		(800)		—		(800)
Balance, March 31, 2020	28,365,069	28		280,132		(2,540)		(174,503)		103,117
Exercise of stock options and vesting of restricted stock units	330,692	1		2,046		—		—		2,047
Stock-based compensation expense	—	—		2,556		—		—		2,556
Statutory tax withholding related to net-share settlement of restricted stock units	(48,675)	—		(659)		—		—		(659)
Net income	—	—		—		—		6,986		6,986
Foreign currency translation adjustments	—	—		—		299		—		299
Balance, June 30, 2020	28,647,086	$	29	$	284,075	$	(2,241)	$	(167,517)	$	114,346

(1) The Company recorded a reduction to accumulated deficit at January 1, 2020 as a result of its adoption of ASU 2016-13, Financial Instruments - Credit Losses.

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Goodwill and Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Finite-Lived Intangible Assets

The estimated useful lives and amortization methodology used in computing amortization are as follows:

	Estimated Useful Life	Amortization Methodology
Customer relationships	7 years	Straight-line
Acquired technology	7 years	Straight-line

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Fair Value Measures and Disclosures (Tables)

6 Months Ended

Jun. 30, 2021

Fair Value Disclosures [Abstract]

Schedule of Business Acquisition Contingent Consideration

The following table presents the changes to the Company's liability for acquisition-related contingent consideration for the six months ended June 30, 2021 (in thousands):

Balance as of December 31, 2020	$	1,330
Change in fair value	(1,325)
Balance as of June 30, 2021	$	5

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Revenue from Contracts with Customers (Tables)

6 Months Ended

Jun. 30, 2021

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue

The following table summarizes revenue disaggregation by customer type for the three and six months ended June 30, 2021 and 2020 (in thousands):

	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Retailers	$	22,516	$	23,273	$	44,293	$	42,988
Brands	15,956		11,494		30,205		21,780
Other	3,071		2,676		6,211		4,707
	$	41,543	$	37,443	$	80,709	$	69,475

Deferred Revenue

The following table summarizes deferred revenue activity for the six months ended June 30, 2021 (in thousands):

	Balance, beginning of period		Net additions	Revenue recognized from deferred revenue	Balance, end of period
Deferred revenue	$	23,301	66,808	(62,292)	$	27,817

Deferred Contract Costs

The following table summarizes deferred contract cost activity for the six months ended June 30, 2021 (in thousands):

	Balance, beginning of period		Additions	Amortized costs (1)	Balance, end of period
Deferred contract costs	$	21,333	7,441	(4,189)	$	24,585

(1) Includes contract costs amortized to sales and marketing expense during the period and the impact from foreign currency exchange rate fluctuations.

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Stock-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2021

Share-based Payment Arrangement [Abstract]

Summary of Stock-Based Compensation Expense

Stock-based compensation expense is included in the following line items in the accompanying condensed consolidated statements of operations for the three and six months ended June 30, 2021 and 2020 (in thousands):

	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Cost of revenue	$	264	$	238	$	496	$	557
Sales and marketing	996		777		1,816		1,517
Research and development	690		543		1,302		1,223
General and administrative	1,626		998		3,010		2,173
Total stock-based compensation expense	$	3,576	$	2,556	$	6,624	$	5,470

Summary of Awards Granted in Period

During the six months ended June 30, 2021, the Company granted the following share-based awards:

	Number of Shares Underlying Grant	Weighted Average Grant Date Fair Value
Restricted stock units	449,506	$	23.39
Performance stock units	71,932	$	23.88
Total share-based awards	521,438

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Net Income (Loss) Per Share (Tables)

6 Months Ended

Jun. 30, 2021

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted

The following table summarizes the calculation of basic and diluted net income per share (in thousands, except share and per share data):

	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Basic:
Net income	$	4,560	$	6,986	$	10,017	$	8,993
Weighted average common shares outstanding, basic	29,764,013		28,489,086		29,530,369		28,325,426
Basic net income per share	$	0.15	$	0.25	$	0.34	$	0.32
Diluted:
Net income	$	4,560	$	6,986	$	10,017	$	8,993
Weighted average common shares outstanding, basic	29,764,013		28,489,086		29,530,369		28,325,426
Dilutive effect of:
Stock options	572,474		259,774		604,491		154,854
Unvested restricted stock units	1,066,208		951,664		1,134,567		882,606
Weighted average common shares outstanding, diluted	31,402,695		29,700,524		31,269,427		29,362,886
Diluted net income per share	$	0.15	$	0.24	$	0.32	$	0.31

Schedule of Securities Excluded from Calculation of Weighted Average Common Shares Outstanding

The following equity instruments have been excluded from the calculation of diluted net income per share because the effect is anti-dilutive:

	Three Months Ended June 30,		Six Months Ended June 30,
	2021	2020	2021	2020
Stock options	22,229	603,838	22,541	1,329,915
Restricted stock units	20,796	25,783	20,852	17,878

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Segment and Geographic Information (Tables)

6 Months Ended

Jun. 30, 2021

Segment Reporting [Abstract]

Summary of Revenue by Geography

The following table summarizes revenue by geography for the three and six months ended June 30, 2021 and 2020 (in thousands):

	Three Months Ended June 30,				Six Months Ended June 30,
	2021		2020		2021		2020
Domestic	$	29,471	$	28,522	$	57,982	$	52,436
International	12,072		8,921		22,727		17,039
Total revenue	$	41,543	$	37,443	$	80,709	$	69,475

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Stockholders' Equity (Detail) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	$ 139,972	$ 130,091	$ 103,117	$ 99,649	$ 130,091	$ 99,649
Exercise of stock options and vesting of restricted stock units	136	3,587	2,047	87
Stock-based compensation expense	3,576	3,048	2,556	2,914
Statutory tax withholding related to net-share settlement of restricted stock units	(1,177)	(2,061)	(659)	(980)
Net income	4,560	5,457	6,986	2,007	10,017	8,993
Foreign currency translation adjustments	88	(150)	299	(800)	(62)	(501)
Ending balance	147,155	$ 139,972	$ 114,346	$ 103,117	147,155	114,346
Accounting Standards Update [Extensible List]				us-gaap:AccountingStandardsUpdate201613Member
Accumulated deficit	$ (147,668)				$ (147,668)		$ (157,685)
Cumulative Effect, Period of Adoption, Adjustment
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance				$ 240		$ 240
Common Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance (in shares)	29,732,852	29,020,424	28,365,069	28,077,469	29,020,424	28,077,469
Beginning balance	$ 30	$ 29	$ 28	$ 28	$ 29	$ 28
Exercise of stock options and vesting of restricted stock units (in shares)	146,164	802,270	330,692	394,998
Exercise of stock options and vesting of restricted stock units	$ 0	$ 1	$ 1	$ 0
Statutory tax withholding related to net-share settlement of restricted stock units (in shares)	(48,409)	(89,842)	(48,675)	(107,398)
Ending balance (in shares)	29,830,607	29,732,852	28,647,086	28,365,069	29,830,607	28,647,086	29,020,424
Ending balance	$ 30	$ 30	$ 29	$ 28	$ 30	$ 29
Additional Paid-in Capital
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	293,415	288,842	280,132	278,111	288,842	278,111
Exercise of stock options and vesting of restricted stock units	136	3,586	2,046	87
Stock-based compensation expense	3,576	3,048	2,556	2,914
Statutory tax withholding related to net-share settlement of restricted stock units	(1,177)	(2,061)	(659)	(980)
Ending balance	295,950	293,415	284,075	280,132	295,950	284,075
Accumulated Other Comprehensive Loss
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	(1,245)	(1,095)	(2,540)	(1,740)	(1,095)	(1,740)
Foreign currency translation adjustments	88	(150)	299	(800)
Ending balance	(1,157)	(1,245)	(2,241)	(2,540)	(1,157)	(2,241)
Accumulated Deficit
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning balance	(152,228)	(157,685)	(174,503)	(176,750)	(157,685)	(176,750)
Net income	4,560	5,457	6,986	2,007
Ending balance	$ (147,668)	$ (152,228)	$ (167,517)	$ (174,503)	$ (147,668)	$ (167,517)

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Goodwill and Intangible Assets - Estimated Useful Lives and Amortization Methodology (Detail)	6 Months Ended
	Jun. 30, 2021
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Estimated useful life of intangible asset (in years)	7 years
Acquired technology
Finite-Lived Intangible Assets [Line Items]
Estimated useful life of intangible asset (in years)	7 years

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Goodwill and Intangible Assets - Goodwill and Intangible Assets Narrative (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Goodwill and Intangible Assets Disclosure [Abstract]
Change in goodwill			$ 0.0
Amortization expense	$ 0.3	$ 0.2	$ 0.6	$ 0.3

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Fair Value of Measurements - Narrative (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2021 USD ($)
Business Acquisition [Line Items]
Balance as of December 31, 2020	$ 1,330
Change in fair value	(1,325)
Balance as of June 30, 2021	5
BlueBoard
Business Acquisition [Line Items]
Contingent consideration (up to)	$ 3,000

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Capitalized Software Development Costs - Additional Information (Detail) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Dec. 31, 2020
Property, Plant and Equipment [Abstract]
Capitalized software development costs	$ 900,000	$ 700,000	$ 1,600,000	$ 1,400,000
Capitalized software development costs amortization	700,000	$ 400,000	1,300,000	$ 800,000
Capitalized software development costs, net	$ 4,500,000		$ 4,500,000		$ 4,200,000

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Line of Credit - Narrative (Details) - Line of Credit - 2020 Revolving Credit Facility	Aug. 05, 2020 USD ($)
Revolving Credit Facility
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	$ 25,000,000.0
Maximum increase allowed during term	$ 10,000,000.0
Line of credit facility, unused capacity, commitment fee percentage	0.50%
Revolving Credit Facility | Base Rate
Line of Credit Facility [Line Items]
Basis spread on variable rate	2.25%
Revolving Credit Facility | London Interbank Offered Rate (LIBOR)
Line of Credit Facility [Line Items]
Basis spread on variable rate	3.25%
Letter of Credit
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	$ 10,000,000.0
Outstanding letters of credit interest rate	3.25%

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Revenue from Contracts with Customers - Disaggregation of Revenue (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Disaggregation of Revenue [Line Items]
Revenue	$ 41,543	$ 37,443	$ 80,709	$ 69,475
Retailers
Disaggregation of Revenue [Line Items]
Revenue	22,516	23,273	44,293	42,988
Brands
Disaggregation of Revenue [Line Items]
Revenue	15,956	11,494	30,205	21,780
Other
Disaggregation of Revenue [Line Items]
Revenue	$ 3,071	$ 2,676	$ 6,211	$ 4,707

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Revenue from Contracts with Customers - Additional Information (Detail) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2021	Jan. 01, 2021	Dec. 31, 2020
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Contract period	12 months
Payment period	30 days
Revenue	$ 80,700
Deferred contract costs, current	$ 8,300
Capitalized contract cost, amortization period	5 years
Deferred revenue	$ 27,040	$ 19,200	$ 22,819
Marketplaces and Digital Marketing [Member]
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Contract period	1 year

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Revenue from Contracts with Customers - Transaction Price Allocated to Future Performance Obligations (Detail) $ in Millions	Jun. 30, 2021 USD ($)
Revenue from Contract with Customer [Abstract]
Remaining performance obligation	$ 32.7
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2021-07-01
Revenue from Contract with Customer [Abstract]
Remaining performance obligation	$ 21.0
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items]
Performance obligation period	12 months

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Revenue from Contracts with Customers - Deferred Revenue (Detail) $ in Thousands	6 Months Ended
	Jun. 30, 2021 USD ($)
Deferred revenue
Balance, beginning of period	$ 23,301
Net additions	66,808
Revenue recognized from deferred revenue	(62,292)
Balance, end of period	$ 27,817

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Revenue from Contracts with Customers - Costs to Obtain Contracts (Detail) $ in Thousands	6 Months Ended
	Jun. 30, 2021 USD ($)
Deferred contract costs
Balance, beginning of period	$ 21,333
Additions	7,441
Amortized costs	(4,189)
Balance, end of period	$ 24,585

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Stock-Based Compensation - Narrative (Details)	6 Months Ended
	Jun. 30, 2021
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Percent Of Executive Office Equity Awards Granted As Performance-Based Vesting Restricted Stock Units	50.00%
Performance Shares [Member] | Share-based Payment Arrangement, Tranche One [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage	50.00%
Performance Shares [Member] | Share-based Payment Arrangement, Tranche Two [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage	50.00%
Performance Shares [Member] | Minimum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage	0.00%
Performance Shares, 2020 Fiscal Year Grants | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage	150.00%
Performance Shares, 2021 Fiscal Year Grants | Maximum [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage	200.00%

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Stock-Based Compensation - Summary of Stock-Based Compensation Expense (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Stock-Based Compensation [Line Items]
Stock-based compensation expense	$ 3,576	$ 2,556	$ 6,624	$ 5,470
Cost of revenue
Stock-Based Compensation [Line Items]
Stock-based compensation expense	264	238	496	557
Sales and marketing
Stock-Based Compensation [Line Items]
Stock-based compensation expense	996	777	1,816	1,517
Research and development
Stock-Based Compensation [Line Items]
Stock-based compensation expense	690	543	1,302	1,223
General and administrative
Stock-Based Compensation [Line Items]
Stock-based compensation expense	$ 1,626	$ 998	$ 3,010	$ 2,173

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Stock-Based Compensation - Grants in Period (Detail)	6 Months Ended
	Jun. 30, 2021 $ / shares shares
Number of Shares Underlying Grant
Total share-based awards (in shares)	521,438
Restricted stock units
Number of Shares Underlying Grant
Restricted stock units (RSUs) (in shares)	449,506
Weighted Average Grant Date Fair Value
Restricted stock units (RSUs) (in dollars per share) | $ / shares	$ 23.39
Performance Shares [Member]
Number of Shares Underlying Grant
Restricted stock units (RSUs) (in shares)	71,932
Weighted Average Grant Date Fair Value
Restricted stock units (RSUs) (in dollars per share) | $ / shares	$ 23.88

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Net Income (Loss) Per Share - Calculation of Basic and Diluted Net Income (Loss) per Share (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2021	Jun. 30, 2020
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Net income	$ 4,560	$ 5,457	$ 6,986	$ 2,007	$ 10,017	$ 8,993
Weighted average common shares outstanding, basic	29,764,013		28,489,086		29,530,369	28,325,426
Basic net income (loss) per share (in dollars per share)	$ 0.15		$ 0.25		$ 0.34	$ 0.32
Weighted average common shares outstanding, diluted (in shares)	31,402,695		29,700,524		31,269,427	29,362,886
Diluted net income (loss) per share (in dollars per share)	$ 0.15		$ 0.24		$ 0.32	$ 0.31
Stock options
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Dilutive effect (in shares)	572,474		259,774		604,491	154,854
Restricted stock units
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Dilutive effect (in shares)	1,066,208		951,664		1,134,567	882,606

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Net Income (Loss) Per Share - Antidilutive Equity Instruments (Detail) - shares	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Stock options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from calculation of weighted average common shares outstanding (in shares)	22,229	603,838	22,541	1,329,915
Restricted stock units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from calculation of weighted average common shares outstanding (in shares)	20,796	25,783	20,852	17,878

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Income Taxes - Narrative (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Income Tax Disclosure [Abstract]
Effective tax rate	(12.00%)	4.40%	(4.10%)	5.70%
U.S. federal statutory rate	21.00%	21.00%	21.00%	21.00%

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Segment and Geographic Information - Additional Information (Detail)	6 Months Ended
	Jun. 30, 2021 segment
Segment Reporting [Abstract]
Number of reportable segment	1
Number of operating segment	1

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Segment and Geographic Information - Summary of Revenue by Geography (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Segment Reporting Information [Line Items]
Revenue	$ 41,543	$ 37,443	$ 80,709	$ 69,475
Domestic
Segment Reporting Information [Line Items]
Revenue	29,471	28,522	57,982	52,436
International
Segment Reporting Information [Line Items]
Revenue	$ 12,072	$ 8,921	$ 22,727	$ 17,039