On Account Credit Memos referencing an order or invoice

We have many situations where an order was entered, the customer was invoiced, and the customer has paid their invoice in full.  The orders were entered with accounting rules and rule start and end dates, therefore the invoice was created with distribution lines recognizing revenue over this period of time.  

After the invoice was already paid, we realize the order needs to be changed.  Perhaps the item ordered was keyed incorrectly or the service start and end dates were slightly off.  To fix those issues, we will issue a credit and a rebill on the sales order.  The customer is not bothered by our mistake as we will not print or mail the credit memo and new rebilled invoice as those 2 documents will off set each other.