ATG Fuels Enthusiasm and Knowledge Sharing Among Customers Through Loyalty Program and Forums; Programs Serve to Further Deepen Relationships With Customers.

Business Editors/High-Tech Writers

CAMBRIDGE, Mass.--(BUSINESS WIRE)--Oct. 30, 2002

ATG (Art Technology Group, Inc., Nasdaq: ARTG), a leading developer of online CRM applications for commerce, portals, and relationship management, today announced the success of its ATG Regional Customer Forums and the new ATG Customer Loyalty Program, two major initiatives designed to strengthen the relationships between ATG and its customers.

Both programs have been marked by the participation of loyal customers throughout ATG's stable. The customer forums, which are designed to create a community of ATG customers that can learn from one another in a setting that is unlike the traditional "user group," typically consist of at least 20 ATG customers that have had ATG products installed for at least six months. The forums began in June 2001 and have been hosted from New York to Chicago by customers such as J.Crew, Pioneer Investments and Martha Stewart Omnimedia.

The ATG Customer Loyalty Program, meanwhile, kicked off in January 2002 and has completed the first three phases of customer surveys, which are being used to gain quantifiable data on ATG customers in an effort to understand how ATG can more effectively address customers' business and technical needs. The program will be used as a management tool to improve product, services, business processes and customer loyalty. Through the first three phases, the survey, conducted entirely via the Web, has been sent to audiences ranging from senior management to product and services users.

"Having built our reputation on the industry's leading personalization technology, it makes sense that we would be just as aggressive in gaining intimate knowledge as to the successes and challenges our customers face in deploying our technology," said Paul Shorthose, CEO, president and chairman of the board, ATG. "These two programs have provided us with insight and information that simply could not be gained as quickly through the normal course of business."

Both the ATG Customer Forums and the ATG Customer Loyalty Program are designed to serve as complimentary programs to ongoing efforts such as the Customer Advisory Council (see separate release dated October 24, 2002), the Online Developers Community and the annual ATG Open.

About ATG

ATG (Art Technology Group, Inc.) is the 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's application suites for e-commerce, portals, and relationship management are ideal for integrated e-business initiatives across the enterprise.

Today, ATG has delivered e-business solutions to blue-chip companies worldwide including Aetna Services Inc., Alcatel, American Airlines, Barclays Global Investors, BMG Direct, Eastman Kodak, Ford Motor Credit, HSBC, J.Crew, Sun Microsystems, USDA, U.S. Army, Walgreen Company, and WellsFargo. 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 Art Technology Group, Inc. ATG, Art Technology Group, the Techmark, and the ATG Logo are registered trademarks of Art Technology Group, Inc. All other trademarks are the property of their respective holders. NASDAQ:ARTG

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 its 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 ATG will discontinue either or both of these programs; that the customer will not see significant revenue increases from participation in these programs; and that ATG will not see revenue increases from the sponsorship of such programs. ATG undertakes no obligation to update any of the forward-looking statements after the date of this press release.