We are procuring spare parts (ERSA) externally, which is having price control as MAP. While doing GR, system shows message "Account 602042 required an assignment to a CO object." Here the problem is account 602042 is a price difference (PRD) account. Why should system ask for a G/L, which is mentioned in PRD in this case.
Please note that this is first movement for the material and stock is zero in plant. There are no material documents for this material.