SAP Message AY154 - The name of the supplier will be overwritten

Diagnosis
The vendor number is used to determine a vendor name, using thevendor master record. This name is different from the vendor namecurrently displayed.

System Response
The system overwrites the currently displayed vendor name with thename determined from the vendor master record.

Procedure
If you do not want the displayed vendor name to be overwritten,delete the vendor number or enter a one-time account.