SAP Message WU543 - The sales period is different to that in the reference plant

Diagnosis
A sales period that differs from the sales period of the referenceplant was found for plant &V4&, material &V2& in unit of measure &V3&.

System Response
Price activation at plant group level may lead to incorrect results forplant group &V1&.

Procedure
You can activate prices at plant level by changing the price activationtype for plant group &V1&. To do this, change the price activation typeindicator to "Plant" in the plant group overview.