I am facing the following problem: in Order related Billing according to order qty, the sales order bills what has been received on the third party PO in MM.
The following situation occurs: When I order 100, receive 100 and Bill 100: The sales order is fully billed. When I later return a quantity to the vendor in MM with a 122 referring to the PO, the sales order remains fully billed. There is no way I can find out which Sales order needs to be take action on (credit). Can someone help me finding out how I can select these sales orers after a 122?