SAP Message /SAPPCE/01019 - Only account assignments allowed for a DPC are possible in PO

Diagnosis Account assignments that are not allowed for a DPC are in the PO. System Response Account assignments that are allowed for a DPC alone are possible in thePO. Procedure Maintain account assignments that are allowed for a DPC. The allowedaccount assignments are: ,,WBS Element/Project ,,Order ,,Cost Center ,,Network Activity