Is it possible to change the quantity and unit price of paid invoices that have been matched to Purc

Hi,

I understand that we should not be able to change the value of the invoice once it has been paid but we have a number of scenarios where it would be helpful to update the quantity and unit price of such invoices.  I am therefore trying to find out if this is possible.

Here are a couple of the scenarios we have:

Scenario A: Quantity (QTY) and Unit Price swapped on invoice

1. Purchase Requisition (PR) / Purchase Order (PO) line raised as QTY: 9 @ 10.00 (each) for a total Amount of 90.00
2. Receipt created, receiving all 9 items.  Receipt total = 90.00
3. AP Invoice entered, matched to PO line as QTY 10 @ 9.00 (each) for a total Amount of 90.00