The best practice is to hold the invoice and material/s in the receiving area with documentation.
Return the item to Alibris for credit/refund. Once credit memo is received, we will then invoice all the items on the Invoice # 72255416 with a Note for the item we returned: Returned LP and post in Sierra. Then we will post the Credit Memo in Sierra with a Note: Credit for returned LP
See attached example: Alibris return for Invoice # 65413827 / Credit Memo 65756754
Also, the best practice for sending books back to Alibris is to use ILL FedEx Express.
There is an example of the form in the Return Log note book. This is a short turn around time.