ADVISORY/ATG and Nike to Co-host Online CRM Roundtable; ATG Clients Gather to Discuss eCommerce Successes and Challenges; Look Ahead to Upcoming Holiday Season and Beyond.

Business/Technology Editors

ADVISORY...for Wednesday (Oct. 2)

CAMBRIDGE, Mass.--(BUSINESS WIRE)--Oct. 1, 2002

Hoping to paint a picture of the eCommerce landscape in the short-term future and beyond, ATG (Art Technology Group, Inc., Nasdaq: ARTG) and Nike will co-host a roundtable, bringing together leading retailers, manufacturers and other national brands on October 2, 2002 at the Tiger Woods Center located on the Nike campus in Portland, Oregon.

Technology executives from ATG customers including Nike, Neiman Marcus, J. Crew, Newell Rubbermaid and Finish Line will assemble to discuss their eCommerce and online CRM strategies, covering topics such as:

-- Specific deployments

-- Pain points and lessons learned

-- Consolidation of multiple brands

-- Personalization

-- ROI

Moderating the day's program will be John Dragoon, senior vice president of marketing and product management, ATG, and Fumi Matsumoto, vice president of technology, ATG.

What: eCommerce/Online CRM roundtable

When: Wednesday, October 2, 11:30 a.m. - 5:30 p.m. PDT

Where: Tiger Woods Center, Nike Headquarters, Portland, OR

About ATG

ATG (Art Technology Group, Inc.) is a leading developer of online CRM applications that deliver an integrated, personalized experience for customers, partners and employees: the frontline of every business. Customers around the globe rely on ATG for the frontline applications that help build and manage mutually beneficial relationships. Deployed on the industry's most popular application servers, ATG solutions for commerce, portals, and relationship management are ideal for integrated e-business initiatives across the enterprise.

Today, ATG has delivered solutions to blue-chip companies worldwide, including Aetna Services, Inc., Alcatel, American Airlines, AT&T, Barclays Global Investors, Best Buy, BMG Direct, Eastman Kodak, Ford Motor Credit, HSBC, J. Crew, Sun Microsystems, Walgreen Company, and WellsFargo and government organizations including the United States Army and the USDA. The company is headquartered in Cambridge, Massachusetts, with additional locations throughout North America, Europe, and Asia. For more information about ATG, please visit our Web site at www.atg.com.

(c) 2002 ATG and Art Technology Group are registered trademarks of Art Technology Group, Inc. All other product names, service marks, and trademarks mentioned herein are trademarks of their respective owners.

This press release contains forward-looking statements for purposes of the safe harbor provisions under The Private Securities Litigation Reform Act of 1995. These statements involve known and unknown risks and uncertainties that may cause ATG's actual results, levels of activity, performance or achievements to be materially different from any future results, levels of activity, performance or achievements expressed or implied by such forward-looking statements. Important risk factors affecting ATG's business generally may be found in their periodic reports and registration statements filed with the Securities and Exchange Commission. Risk factors related to the subject matter of this press release include the possibility that the ATG product deployment will not be successful, on time or significantly enhance the user's internet experience or handle user volumes; or increase user sales or marketing effectiveness; the need to adapt to rapid changes so products do not become obsolete; the possibility of errors in ATG's software products; and the possibility that the solution will not make customer implementations faster or more flexible; and the possibility that ATG will discontinue certain offerings, risks and costs associated with intellectual property litigation. ATG undertakes no obligation to update any of the forward-looking statements after the date of this press release.