Ed Trapasso
New York
+1 (917) 452 3555

Julie Clark
+1 (925) 941 5970

Stephanie Cebulski
+1 (415) 905 4040

February 11, 2000
Accenture and Commerce One Form Alliance to Deliver Global Business-to-Business Portal Solutions

WALNUT CREEK, Calif., and NEW YORK -- February 11, 2000 -- Commerce One, Inc. (NASDAQ: CMRC), the leader in global electronic commerce (eCommerce) solutions for business, and Accenture, a leading global management and technology consulting organization, today announced the formation of a global alliance to help companies leverage the power of buying and selling over the Internet.

Under terms of the alliance, Accenture will make a strategic commitment to establish a dedicated team of professionals focused on e-procurement and marketplace solutions. This team will help Accenture’s clients maximize the benefits of Commerce One’s MarketSite (Portal Solution and Commerce One BuySite) e-procurement applications. Together, Commerce One and Accenture will work to provide business-to-business eCommerce portal services, strategic consulting, and world-class systems integration services for vertical and regional organizations worldwide. In addition, Accenture will become a Global Alliance Partner and a preferred implementation partner of Commerce One’s solutions.

"Commerce One is a leader in business-to-business eCommerce portals and e-procurement applications," said Matt Mosetick of Accenture. "The combination of Commerce One’s industry-leading eCommerce technology with Accenture’s powerful global management and technology capabilities will provide our joint clients with all the means necessary to take advantage of the overwhelming benefits of business-to-business eCommerce."

Accenture will help Commerce One meet the market demand for its e-procurement application and MarketSite portal solution in a global environment of sharply rising eCommerce activity.

"Business-to-business electronic commerce represents a huge growth industry," said Leah Knight, Principal Analyst of GartnerGroup. "Partnerships between electronic commerce firms and system integrators will help accelerate the adoption of business-to-business eCommerce on a global basis."

"As a thought leader in advanced supply chain practices, Accenture is an ideal partner for us, because the firm truly understand the strategic value of eCommerce in today’s global economy," said Chuck Donchess, executive vice president and chief strategy officer, Commerce One. "We believe that the alliance with Accenture will significantly strengthen our ability to meet the worldwide demand for our products and services and that Accenture has the eCommerce skills needed to deliver value-based change."

About Commerce One
Commerce One (NASDAQ: CMRC) is the leader in global e-commerce solutions for business. Through its products, portals, and services, Commerce One creates access to worldwide markets, allowing anyone to buy from anyone, anytime, anywhere in the world. The Commerce One Solution(tm), comprising Commerce One BuySite(tm) and Commerce One MarketSite(tm), enables companies to significantly reduce operational costs and increase efficiency by automating the entire indirect goods and services supply chain. As a result, enterprise organizations are able to realize a strategic competitive advantage as well as a rapid return on investment. The Commerce One Global Trading Web allows organizations to buy and sell around the world as easily as they do at home through access to a network of interconnected marketplaces on six continents. Commerce One is located in Walnut Creek, Calif., and can be reached by phone at (800) 308-3838 or (925) 941-6000 or via the Internet at http://www.commerceone.com.

Forward Looking Statements
Certain statements made in this press release by Commerce One are not historical facts but are "forward looking statements" and may involve risks and uncertainties which could cause actual future results to differ materially and adversely from those anticipated by such statements. Included among the factors that could affect Commerce One’s performance are: general economic conditions; fluctuations in operating results; its ability to effectively manage future growth, to retain and efficiently integrate our executive management team, and to identify, hire, train and retain, in a highly competitive market, individuals highly skilled in the Internet and its rapidly changing technology and significant revenue concentration in a limited number of clients. For a discussion of these and other risk factors that could affect Commerce One’s business, see "Risk Factors" in Commerce One’s filings with the Securities and Exchange Commission, including its quarterly report on Form 10-Q for the quarter ended September 30, 1999.

Commerce One, Many Markets. One Source., Global Trading Web, BuySite, MarketSite, Global Trading Platform, Common Business Library, XML Development Kit, XML Commerce Connector, MarketView, and SupplyOrder are either trademarks or registered trademarks of Commerce One, Inc. All other company, product, and brand names are trademarks of their respective owners.

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