I am working ECC6. I create a PO for a Vendor with Freight Conditions with estimated costs. The PO has Release Strategy that once released for GR it cannopt be changed. Goods then arrive and I create a GR which updates the Moving Average Price. I then receive Invoice for Payment from Vendor.
Problem: I also receive an Invoice from ANOTHER Vendor for payment for the transport cost. (1) How can I link this Invoice to the Original PO and (2) How can I make sure that the Transport costs also updates my Moving Average Price.