SAP Message W/178 - Price phase &3 for material &1 &2 not deleted; it is price-dependent

Diagnosis
The price phase with the start date &V3& for material &V1& &V2& cannotbe deleted because the material does not have its own sales pricecondition. It refers instead to the sales price condition of anothermaterial.

System Response
The price phase is not deleted.

Procedure
Delete the relevant price phase for the price material from the markdownplan.