The CEO of troubled SAP subsidiary TomorrowNow, Andrew Nelson, and several senior managers have abruptly resigned, and SAP is now thinking of selling the company.

TomorrowNow is the focus of a lawsuit filed against SAP by Oracle over alleged illegal downloads of customer-support materials by workers at the subsidiary.

Oracle filed the lawsuit in March, and in July, SAP admitted that TomorrowNow employees made "inappropriate" downloads of fixes and support documents from Oracle's website. At the time SAP said that the Oracle data did not leave its subsidiary's separate IT systems.

TomorrowNow provides support and maintenance for PeopleSoft, Siebel and JD Edwards applications, each of which is owned by Oracle. SAP acquired TomorrowNow in January 2005.

In a statement, SAP said that it is currently "considering several options" for the future of its TomorrowNow business, including a potential sale.

Mark White, executive chairman of TomorrowNow, said the unit plans to explain the management shakeup and its upcoming strategy over the next few days. "SAP is prepared to manage through these changes to ensure that TomorrowNow's obligations to its current customers are met," he said.

The lawsuit is scheduled to be heard in February 2009.