If you return items to a vendor and the receipt used when you received the items was posted but is not marked Complete, you can use the I/C Receipts screen to enter the return.
When entering receipt returns, you can change the following information in the I/C Receipts screen:
You cannot change the vendor or change the exchange rate (for a multicurrency transaction).
Note: You can enter returns only to incomplete posted receipts. If the receipt is marked Complete, was deleted, or is no longer available, you must enter the return as an adjustment using the I/C Adjustments screen.