My process is: Sales Order > Delivery Note > Sales Invoice > Payment
When the customer returns goods:
1) he might return them on different warehouse (from the one the goods were shipped)
2) I might need to send him money back first (with a sales corrective invoice), before the returning item will come to my warehouse.
How to design this process is SAP B1. From my perspective and tests neither point 1 nor 2 are possible in SAP B1. Please help. Thanks