Onyx Believes its Open Proposal to Acquire Pivotal Remains Superior to All Public Offers

"While Onyx is positioned to thrive on its own, the strong synergies resulting from adding the positive assets of Pivotal into our business could further enhance the opportunity to create value for both companies' shareholders," said Brent Frei, Onyx Software CEO. "For nearly a decade we've delivered industry-recognized technology and services that have helped organizations of all sizes achieve positive ROI and business impact from CRM. We believe that no company or organization is better positioned to deliver value for Pivotal customers than Onyx."

ONYX BELIEVES ITS PROPOSAL PROVIDES SUPERIOR VALUE TODAY

Under the terms of the proposal, the companies would be combined on the basis of 0.475 shares of Onyx Software common stock for each common share of Pivotal Corporation, or approximately 12.5 million shares of Onyx. The Onyx proposal values Pivotal shares at approximately $2.25 per share, based on the $4.73 closing price of Onyx common stock on November 11, 2003. That value is approximately $2.40 based on the average closing price of $5.067 for Onyx common stock over the thirty day period ended November 11, 2003. Based on yesterday's closing price of $4.19 for Onyx common stock, the Onyx proposal values Pivotal shares at approximately $1.99. These values compare favorably to the Talisma offer valued at $1.78 per Pivotal share.

In the seven trading sessions since Onyx Software's announcement, the NASDAQ trading volume in Pivotal stock exceeded 11.2 million shares and 1.3 million shares were traded on the Toronto Stock Exchange -- all at prices in excess of the existing $1.78 Talisma offer -- strongly indicating that the financial community believes that the Onyx proposal is superior. "Shareholders who preferred Talisma's lower cash offer could have and may yet be able to sell their shares for $1.78 or higher," said Brian Henry, Onyx Software Executive VP and CFO. "Buyers of Pivotal shares in these recent sessions clearly believe that value of the stock is greater than $1.78."

ONYX BELIEVES ITS PROPOSAL OFFERS SUPERIOR PROSPECTS FOR THE FUTURE

Onyx Software's proposal:

• Offers Pivotal shareholders and employees equity participation in what would be the second largest pure play CRM vendor
• Is expected to result in synergies leading to incremental quarterly profits and cash flows to the combined entity that Onyx believes could approach $2 million as early as one to two full quarters following the acquisition
• Does not require financing as a condition
• Would result from a definitive agreement that would be completed in the first week of December
• Is expected to be completed in the first calendar quarter of 2004
• Puts Pivotal assets with Onyx -- a company that has delivered better operating performance and equity valuation

Forward-Looking Statement
This press release contains forward-looking statements, including statements about the ability of Onyx to deliver value for Pivotal customers, the success of current Pivotal customers with their CRM deployments, the likelihood that Pivotal customers will migrate to Onyx products, the merits of the Onyx proposal relative to the Talisma offer, the anticipated cost savings and expected revenues of the combined Onyx/Pivotal entity, the amount of positive cash flow that would be generated by the combined entity and the timing of commencement of same, the anticipated time in which the transaction would be closed, Onyx's view of the financial market's perception of the stock prices of each company and the potential benefit to Pivotal shareholders of the transaction. Forward-looking statements are based on the opinions and estimates of management at the time the statements are made and are subject to risks and uncertainties that could cause actual results to differ materially from those anticipated in the forward-looking statements. The words "believe," "expect," "intend," "anticipate," variations of such words, and similar expressions identify forward-looking statements, but their absence does not mean that the statement is not forward-looking. These statements are not guarantees of future performance and are subject to risks, uncertainties and assumptions that are difficult to predict. Factors that could affect Onyx's actual results include, but are not limited to the risk that the transaction does not come to fruition, the risk that the combined entity does not produce the benefits or realize the costs savings that Onyx anticipates, the risk that Onyx is unable to successfully integrate the two entities in a timely manner, the risk that the attention of Onyx's management is diverted from the operation of its core business and the "Important Factors That May Affect Our Business, Our Results of Operations and Our Stock Price" described in our quarterly report on form 10-Q for the period ended September 30, 2003. Readers are cautioned not to place undue reliance upon these forward-looking statements that speak only as to the date of this release. Onyx undertakes no obligation to update publicly any forward-looking statements to reflect new information, events or circumstances after the date of this release or to reflect the occurrence of unanticipated events.

Onyx is a registered trademark of Onyx Software Corp. in the United States and other countries. Other product or service names mentioned herein are the trademarks of their respective owners.

Contact:

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

Reidy Communications Mary Erickson 605-325-3286 (Press Contact)

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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