BELLEVUE, Wash. - Onyx® Software Corporation (NASDAQ: ONXS) will release earnings for the second quarter of 2001 this afternoon and announce the resolution of the internal side letter investigation previously disclosed in the July 24, 2001 press release.

The Onyx Software earnings conference call is scheduled to start promptly at 4:30 pm Eastern (1:30 pm Pacific.) We suggest that you access the call 10-15 minutes prior to the start time by signing on at investor.onyx.com. The call will be archived and available for replay at this same URL. Alternatively, you can participate by phone.

When: Friday, August 10, 2001
Time: 4:30 pm (Eastern) / 1:30 pm (Pacific)
Dial-In: 1-800-289-0468
International Dial-In: 1-913-981-5517
Replay: 1-719-457-0820 (available through midnight, August 17)
Passcode: 427078

About Onyx Software
Onyx Software Corp. (NASDAQ: ONXS), is a global supplier of customer relationship management (CRM) enterprise applications that power a company's entire business world, connecting sales, marketing and service organizations with customers, prospects and partners. Through an innovative mix of Internet technology, strategic services and customer commitment, Onyx helps companies create the seamless, branded customer experiences they need to forge competitive advantage and build real business value. Its reliable, scalable, flexible, holistic solutions enable companies to attract, acquire and retain customers and partners across all channels and touch points. Onyx customers include American Express, Broadwing, Commerce One, Credit Suisse, Dreyfus, FirstWorld Communications, Portland Trail Blazers, Prudential Investments and Sierra Health Services. Get more information at 888-ASK-ONYX or info@onyx.com.

This press release contains forward-looking statements, which provide our current expectations or forecasts of future events. Forward-looking statements include statements about our plans, objectives, expectations and intentions and other statements that are not historical facts. When used in this press release, the words “believes,” “anticipates” and “intends” and similar expressions are intended to identify forward-looking statements, but the absence of these words does not necessarily mean a statement is not forward-looking. Forward-looking statements are subject to known and unknown risks and uncertainties and are based on potentially inaccurate assumptions that could cause actual results to differ materially from those expected or implied by the forward-looking statements. Our actual results could differ materially from those anticipated in these forward-looking statements for many reasons, including the factors described under “Important Factors That May Affect Our Business, Our Results of Operations and Our Stock Price” in our quarterly report on Form 10-Q for the quarter ended March 31, 2001 and in the reports we file from time to time with the Securities and Exchange Commission. Readers should not rely on the forward-looking statements, which speak only as of the date of this release. We undertake no obligation to publicly revise any forward-looking statement to reflect current circumstances after the date of this release or to reflect the occurrence of unanticipated events.

Onyx is a registered trademark of Onyx Software Corporation in the United States and other countries.

Contact:

Rosemary Moothart Investor Relations Director Onyx Software (425) 519-4068

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MEDIA CONTACTS

Americas / Corporate Headquarters Mitch Briggs Public Relations Coordinator Consona Corporation Telephone: 317.249.1620 Mobile: 317.829.4210 Europe, Middle East, Africa Richard Furby Managing Director, Onyx UK Telephone: +44 (0) 1344 322 199 Fax: +44 (0) 1344 489 035 Japan Daisuke Sawamura Director, Professional Services Telephone: +81 03 5215 7311