Microsoft this morning made a new overture to customers of Oracle, Salesforce.com and SAP — offering $150 in cash per user to companies that switch to Microsoft’s Dynamics CRM Online from the competing customer-relationship management services.

The company made the offer on the eve of Salesforce.com’s Dreamforce conference in San Francisco. Microsoft issued an open letter to Salesforce customers from executive Michael Park, saying they’re paying “two to three times more” than they need to for enterprise-class CRM technology. (A footnote says the company is basing the comparison on Microsoft Dynamics CRM Online vs. Salesforce.com Enterprise Edition.)

We’ve contacted Salesforce for comment. CEO Marc Benioff will no doubt have plenty to say about Microsoft during the conference.

The cash offered by Microsoft in the new version of the promotion is $50/user less than the $200/user that Microsoft offered Salesforce and Oracle customers under a previous version of the “Cloud CRM for Less” promotion. However, the Redmond company increased the ceiling from the previous 250 users to a maximum of 500 users, or $75,000. Companies need to buy at least 50 user licenses to be eligible get the cash.

Microsoft reported a 10 percent increase in overall Dynamics revenue in its most recent fiscal year, ended June 30, without disclosing a revenue figure. Salesforce reported overall revenue of $1.66 billion, up 27 percent, for the fiscal year ended Jan. 31.

Like what you're reading? Subscribe to GeekWire's free newsletters to catch every headline

Job Listings on GeekWork

Find more jobs on GeekWork. Employers, post a job here.