Cover Page - USD ($) $ in Billions	12 Months Ended
	Jan. 31, 2022	Feb. 28, 2022	Jul. 31, 2021
Document And Entity Information [Line Items]
Document Type	10-K
Document Annual Report	true
Document Period End Date	Jan. 31, 2022
Current Fiscal Year End Date	--01-31
Document Transition Report	false
Entity File Number	001-36121
Entity Registrant Name	Veeva Systems Inc.
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	20-8235463
Entity Address, Address Line One	4280 Hacienda Drive
Entity Address, City or Town	Pleasanton
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	94588
City Area Code	925
Local Phone Number	452-6500
Title of 12(b) Security	Class A Common Stock,par value $0.00001 per share
Trading Symbol	VEEV
Security Exchange Name	NYSE
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	true
Entity Shell Company	false
Entity Public Float			$ 46.2
Documents Incorporated by Reference	Portions of the Registrant’s Proxy Statement for the 2022 Annual Meeting of Stockholders are incorporated herein by reference in Part III of this Form 10-K to the extent stated herein. The proxy statement will be filed by the Registrant with the Securities and Exchange Commission within 120 days after the end of the Registrant’s fiscal year ended January 31, 2022.
Amendment Flag	false
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	FY
Entity Central Index Key	0001393052
Class A common stock
Document And Entity Information [Line Items]
Entity Common Stock, Shares Outstanding (in shares)		139,594,253
Class B common stock
Document And Entity Information [Line Items]
Entity Common Stock, Shares Outstanding (in shares)		14,764,740