Abbott Laboratories Standardizes on Siebel eBusiness Applications.

Business Editors/High-Tech Writers

SAN MATEO, Calif.--(BUSINESS WIRE)--March 22, 2001

Pharmaceutical Division of Leading Global Healthcare Company Selects

Siebel ePharma to Enhance Effectiveness of U.S. Sales and Marketing

Siebel Systems, Inc. (Nasdaq:SEBL), the world's leading provider of eBusiness applications software, today announced that the Pharmaceutical Products Division of Abbott Laboratories, one of the world's leading diversified healthcare companies, will standardize its U.S. sales and marketing teams on Siebel eBusiness Applications. Siebel ePharma, a version of Siebel eBusiness Applications designed for pharmaceutical and healthcare companies, will provide Abbott professionals with a single, multichannel customer information management system enabling them to evaluate customer needs and promote relevant products, for greater customer satisfaction.

Abbott's Pharmaceutical Products Division has selected Siebel ePharma to streamline sales and marketing reporting and analysis activities that presently depend on several different systems. Siebel ePharma will enable Abbott to create a single repository for customer interactions across multiple locations and communication channels. Siebel Systems' solution will allow health care sales representatives to initiate and access customer histories from the field, to prepare for more productive sales calls and provide timely reports, without delays due to remote location or paper-based systems. Using this up-to-date information, marketing teams will be able to create accurate customer profiles for better-targeted campaigns. And Siebel eBusiness Analytics, a component of the Siebel ePharma suite, will provide Abbott's sales and marketing teams with the ability to measure and evaluate business performance across customers, products, sales and marketing. As a result, Siebel ePharma will enable Abbott to yield greater insight into its customer needs.

"Abbott Laboratories' competitive advantage depends on our ability to analyze customer information and quickly, intelligently deploy our sales and marketing resources to introduce physicians to the benefits of our products. We found Siebel Systems' eBusiness applications targeted specifically for the pharmaceutical industry the best match to help us meet these goals," said Josita Todd, vice president, Information Management and Technology, Pharmaceutical Products Division, Abbott Laboratories. "Our technical evaluation confirmed Siebel ePharma is built on a flexible technology that will easily scale to support Abbott professionals' high level of activity."

About Siebel Systems

Siebel Systems, Inc. (Nasdaq:SEBL) is the world's leading provider of eBusiness applications software. Siebel Systems provides an integrated family of eBusiness applications software enabling multichannel sales, marketing and customer service systems to be deployed over the Web, call centers, field, reseller channels, retail and dealer networks. Siebel Systems' sales and service facilities are located in more than 37 countries. For more information, please visit Siebel Systems' Web site at www.Siebel.com.

Except for the historical information contained herein, this press release contains forward-looking statements that involve risk or uncertainties. Future operating results of Siebel Systems may differ from the results discussed or forecasted in the forward-looking statements due to factors that include, but are not limited to, risks associated with customer relations, such as the availability of Siebel Systems' products and services, customer implementation of products and services, relationships with third-party vendors and systems integrators, concentration of revenues in a relatively small number of customers, existence of errors or defects in products, ability to successfully manage growth, significant current and expected additional competition and the need to continue to expand product distribution and services offerings. Further information on potential factors that could affect the financial results of Siebel Systems are included in Siebel Systems' Annual Report on Form 10-K for the year ended December 31, 1999 and its other filings with the Securities and Exchange Commission.

Note to Editors: Siebel is a trademark of Siebel Systems, Inc. and may be registered in certain jurisdictions. All other product and company names mentioned are the property of their respective owners and are mentioned for identification purposes only.