SAP Message WR079 - Plant &, material group &: revaluation not affecting margins not allowed

Diagnosis
For the revaluation of material &V1& in plant &V2&, you entered areason for the price change which leads to revaluation that does notaffect margins. In this case, the cost value is changed in proportionto the retail value.
Revaluation at retail not affecting margins is not defined in thisplant for the material group to which the material belongs.

Procedure
Enter a reason for a price change which leads to revaluation that doesaffect margins.