SAP Message WB2B_EXPENSE019 - Vendor billing document type &1 cannot be used here

Diagnosis
Only vendor billing document types with the values ' ', 'D', 'F' and'G' are allowed for expense processing in Global Trade. The selectedbilling document type has a different value.

System Response
The system cannot continue processing with this vendor billing documenttype.

Procedure
Choose a different vendor billing document type.