Exhibit 32.2
CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER PURSUANT
In connection with the Annual Report on Form 10-K/A of Art Technology Group, Inc. (the “Company”) for the period ended December 31, 2003, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), the undersigned, Robert D. Burke, the President and Chief Executive Officer of the Company, hereby certifies, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:
| (1) the Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and | |
| (2) the information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company. |
| /s/ EDWARD TERINO | |
| Edward Terino | |
| Senior Vice President, Finance and Chief | |
| Financial Officer | |
| (principal financial and accounting officer) |
Date: July 12, 2004
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