Feb. 8 (Bloomberg) -- SAP AG Chief Executive Officer Leo Apotheker unexpectedly resigned, amid customer and employee discontent, and a failure to boost revenue at the world’s largest business-management software maker.

February 07, 2010 - SAP [...] announced today that the SAP Supervisory Board has reached a mutual agreement with CEO Léo Apotheker not to extend his contract as a member of the SAP Executive Board. Léo Apotheker has resigned as CEO and member of the SAP Executive Board effective immediately.