SAP Message WU557 - Reference plant &1 is not a suitable reference plant for plant group &2

Diagnosis
Plant &V1& is assigned as the reference plant for plant group &V2& forprice calculation at plant group level. However, the plant selected isnot a suitable reference plant for plant group &V2&.
One possible reason is that the plant does not belong to this plantgroup. If a distribution chain is assigned to the plant group, onlyplants that belong to this distribution chain are permitted.

Procedure
Delete the reference plant. Assign a different reference plant to theplant group, or do not assign a plant. If you do not assign a plant,the system determines one.