we do customize the sap system from SD to CO like sales order->delivery note->goods issue->billing this is the typical way. in PCA percpective cost of sales a/c. now sales returns and sales deductions will alos be happen. so here how we will maintain the cost/revenue elements for three scenorios.
1) Once the bill was generated, if the sales returns will happen then the same revenu element, will we use to return the sales returns or deductions?if not how it was updating the PCA.
2) Same scenario to vendor side also in material management.Goods receipt and Invoice receipt difference will reflect in the PCA.(cost element).
<b></b>here i want to know how SAP was triggering both sides and reflecting in PCA.where the logical relation was made in the SAP.
thanks for your help.