Microsoft has partnered with SAP to release Duet Enterprise, which lets IT and business users use SAP processes and data in SharePoint Server 2010 Enterprise and Microsoft Office 2010. Interoperability is the key here, as we’re increasingly seeing with SharePoint and other systems.
In the case of Duet Enterprise, you will be able to select and run SAP reports from within a SharePoint site, manage SAP workflows in SharePoint and Outlook 2010, surface and update SAP data in SharePoint and more. See these Microsoft links for more information:
Duet Enterprise for Microsoft SharePoint and SAP (http://technet.microsoft.com/en-us/library/ff972436.aspx)
Customizing Duet Enterprise Using SharePoint Server 2010 (http://msdn.microsoft.com/en-us/library/ff963728.aspx)