RMA Customer Sequence out RMA/CUST/OUT 5 RMA Customer Sequence in RMA/CUST/IN 5 RMA Supplier Sequence out RMA/SUPP/OUT 5 RMA Supplier Sequence in RMA/SUPP/IN 5 RMA Dropship RMA/DS 5 Customer -> Supplier incoming Supplier -> Customer incoming RMA Customer 10 RMA Supplier 10 RMA Dropship 10 Customer → Supplier move make_to_stock Supplier → Customer move make_to_stock