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We consent to the incorporation by reference in the Registration Statement (Form S-8) pertaining to the 2020 Equity Incentive Plan of ServiceSource International, Inc. of our reports dated February 19, 2020, with respect to the consolidated financial statements of ServiceSource International, Inc. and the effectiveness of internal control over financial reporting of ServiceSource International, Inc. included in its Annual Report (Form 10-K) for the year ended December 31, 2019, filed with the Securities and Exchange Commission.