SAP Message WN271 - Customer & is not assigned to a plant master

Diagnosis
Retail-specific data exists for a customer. However, the customer hasnot been assigned to a plant master.

System Response
The system cannot process the data.

Procedure
Assign a plant to customer &V1& using transaction PlantCreate. You can then process the Retail-specific data using theplant master transactions.
If the customer does not exist in the system either, you can createthis when you create the plant.