SAP Message BOS04073 - Percent field &1 is attached to a schema &2 and version &3 for A/D &4

Diagnosis An assignment of calculation type as Value to an Addition andDeduction procedure is incorrect. System Response You cannot change calculation type as Value to an Addition andDeduction procedure. Any of the percentage field (ZAP01 to ZAP05) isattached to an Addition and Deduction. Procedure Check the Technical Assignment to Field (ZAP01 to ZAP05) for Additionand Deduction procedure. Check customizing: IMG->Sales & Destruction->Bill ofservice->Cost Determination for Bill of Services->Easy costplanning->Define Additions and Deduction procedures