Diagnosis
A vendor number is not entered for the ILN of the message sender intable PRICAT_001 (assignment of ILN to vendor and purchasing group).The system uses the ILN to determin a vendor number from the vendormaster data. If this is not unique, the system cannot assign a vendor.

System Response
The IDoc is not processed further.

Procedure
Assign a unique ILN the vendor or assign a vendor number to the ILN intable PRICAT_001.
Assign vendor