Commerce One Helps Tenovis Optimize Its Strategic Purchasing Processes; Commerce One Solutions Deliver Cost Savings and Improved Efficiencies to Telecommunications Industry.

Business Editors/Technology Writers

PLEASANTON, Calif. & MUNICH, Germany--(BUSINESS WIRE)--Dec. 9, 2002

Commerce One, (Nasdaq:CMRC) today announced that Tenovis, a German communication service provider, has selected Commerce One solutions to streamline its purchasing processes. Commerce One will help Tenovis standardize and integrate its source-to-pay process, including supplier selection, supplier performance management, and online negotiations.

Competition and cost pressure in the telecommunications industry is intense as the industry rapidly evolves due to the deregulation of the telecommunications market, ongoing consolidation, and technology convergence. Commerce One provides leading telecommunications companies such as Tenovis the business advantages they need to lower operating costs and maintain a competitive edge by streamlining their sourcing and purchasing processes and optimizing supplier portfolios.

Commerce One has proven its industry leadership in the telecommunications sector and its capability to deliver significant business value. Commerce One telecommunications customers include Deutsche Telekom, running one of the largest e-procurement installations with more than 20,000 users, British Telecom, Cable & Wireless, Telecom Italia, and Swisscom.

"We selected Commerce One for its modularity, ability to easily integrate with our ERP systems and expand to additional e-commerce initiatives," said Friedhelm Luttecke, head of purchasing at Tenovis. "With an optimized supplier base, we can now implement processes that will help us make the right decisions and consider overall costs for the company. Electronic processes will replace routine tasks and employees will be free to pursue more strategic objectives. By using Commerce One's solutions, Tenovis is not only offering its clients effective solutions, but is also putting a strong emphasis on business efficiencies."

"Commerce One has a long-standing history of helping trading partners in the telecommunications industry communicate more effectively," said Narry Singh, senior vice president of marketing for Commerce One. "We are pleased that our track record of success will continue as we work with Tenovis."

About Commerce One

Commerce One (Nasdaq:CMRC) is a software company dedicated to helping customers connect and optimize applications and business processes throughout and between enterprises to improve business productivity. Initially focusing on the supply chain, where customer demand is greatest, Commerce One solutions streamline the sourcing and procurement process and make the supply chain more flexible. For more information go to www.commerceone.com.

About Tenovis

Since April 2000, Tenovis, the former Private Network Division of Bosch Telecom GmbH, belongs to the American Private Equity Firm KKR (Kohlberg Kravis Roberts & Co.). With 6,500 employees worldwide and 82 service centers in Europe, Tenovis has more than a 20% market share in the business communication segment in Germany, and a solid base of a billion Euro turnover in 2000. Tenovis has 200,000 customers including Bertelsmann, BMW, FC Bayern Munich, HypoVereinsbank, VW and a large number of medium-sized companies. The modular design of its communications systems enables Tenovis to offer customized solutions for every company, independent of its size or business sector. This includes ISDN systems of different dimensions, computer based telephony, data transmission, video conferencing and company-wide data networks including corresponding security systems and other services, like cost management. Tenovis has key competences in design, planning and implementation of systems with full speech- and data-integration. Tenovis is backed up by KKR, one of the worldwide leading investment companies. Founded 1976 in New York, KKR has invested approximately $100 billion in the past 25 years. In Europe alone, KKR bought companies worth $3.5 billion since 1995.

Forward Looking Statements

This press release includes forward-looking statements within the meaning of the securities laws. These forward-looking statements discuss the anticipated benefits of Commerce One software solutions, including their ability to streamline purchasing processes, lower operating costs, and enhance competitiveness. The words "believe," "expect," "intend," "plan," "project," "will" and similar phrases as they relate to Commerce One are intended to identify such forward-looking statements. These statements reflect the current views and assumptions of Commerce One, and are subject to various risks and uncertainties that could cause actual results to differ materially from expectations. These factors include, but are not limited to, the possibility that the Commerce One solutions may not meet user expectations, and various external factors, including economic conditions, that may impact demand for Commerce One products or the results obtained by particular customers. The information provided in this press release is current as of the date of its publication. Commerce One expressly disclaims any obligation to release publicly any updates or revisions to any forward-looking statements to reflect any changes in expectations, or any change in events or circumstances on which those statements are based, unless otherwise required by law. 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, 2002.

Commerce One is a registered trademark of Commerce One Operations, Inc. All other company, product, and brand names are trademarks of their respective owners.