Is it possible not to reopen a PO after a return or a credit memo ?

We have this situation:

Items on PO are fully received and Invoice is payed. PO is closed.

After a few days we realize that the item in question is defective. We contact the supplier for a return. The latter informs us that although he accepts the return, he cannot return us a new part since he no longer has this item. He sends us a credit note.

Is there a way when we make the return not to reopen the PO? Same thing when we apply the credit note?

Thanks