SAP Message BOS04072 - Calculation rule is percent for A/D &1

Diagnosis An assignment of an addition and deduction procedure is incorrect. System Response You cannot attach any of the Value field(ZAW01 to ZAW05) to an Additionand Deduction for which calculation rule is Percentage. Procedure Check the calculation rule assignment of the selected addition anddeduction procedure. You have selected calculation rule as percentageand trying to attach Value field (ZAW01 to ZAW05). Check customizing: IMG->Sales & Destruction->Bill ofservice->Cost Determination for Bill of Services->Easy costplanning->Define Additions and Deduction.