We hereby consent to the incorporation by reference in the Registration Statements (No. 333-112019, 333-112018 and 333-136249) on Form S-3 and (No. 333-34230) on Form S-8 of LivePerson, Inc. of our reports dated March 16, 2007, relating to the consolidated financial statements, and the effectiveness of LivePerson, Inc.’s internal control over financial reporting, which appear in this Annual Report on Form 10-K.