Exhibit 23.1
CONSENT OF INDEPENDENT AUDITORS
The Board of Directors
Ariba, Inc.:
We consent to the incorporation by reference in the registration statements (Nos. 333-107864, 333-61064, 333-73458, 333-81773, 333-89119, 333-95665, 333-33544, 333-46820, and 333-84916) on Form S-8 of Ariba, Inc. of our report dated October 22, 2003 except as to note 12, which is as of January 23, 2004, with respect to the consolidated balance sheets of Ariba, Inc. and subsidiaries as of September 30, 2003 and 2002, and the related consolidated statements of operations and comprehensive loss, stockholders’ equity, and cash flows for each of the years in the three-year period ended September 30, 2003, which report appears in Amendment No. 3 to the September 30, 2003 annual report on Form 10-K/A of Ariba, Inc.
Our report contains an explanatory paragraph that refers to the Company’s adoption of Statement of Financial Accounting Standards No. 142,Goodwill and Other Intangibles, effective October 1, 2002.
/s/ KPMG LLP
Mountain View, California
May 12, 2004
