Document types with VBUND
For some document types it is requirment of client to enter VBUND while entering data. They want to make VBUND mandatory for data entry. I have searched SDN but could not find any clue.
Activate the indicator "Inter Company Posting" and "Enter Trading Partner" in the document type defination in OBA7
And then make the Tradding partner field as mandatory in the field status o Posting Key (OB41) or field status assigned to relevant GL master (OBC4)