Overreceipt Problem

We have an overreceipt problem.  The quantity that was received was greater than the ordered quantity.  We can no longer correct the receipt because the Inventory and Purchasing periods are already closed and there are no other open periods (we closed operations in that organization).  Is there still a way for us to adjust the invoice so that it would reflect the correct amount in AP and in GL?

We initially considered doing manual JV adjustment then accrual write-off in AP but system does not seem allow partial quantity write-off.

Appreciate any suggestions.

Thanks,

Anna