In our company currently we follow this scenario,
1) The consumables are divided as chargeable and non chargeable for services. if the service vendor has consumed chargeable material the value will be deducted during final payment. how to do it in SAP.
I know that if material is issued against internal order cost will be captured against the internal order(iw31). is there a way to issue material against a service vendor using service purchase order as reference so that during MIRO i can deduct the cost against that order as unplanned cost.
PS. i have tried already tried negative entry during service entry and not satisfied.