You
cannot change an invoice if it has been updated to General Ledger or a check
has been printed. However, you can enter additional line items on the invoice
to accomplish the same thing.
To
fix the General Ledger account number on an invoice that has been paid and/or
updated to GL, do the following:
1. In Accounts Payable, go to Invoices and Payments > Enter Invoices
2. Enter the invoice number you are trying to fix and let it take you into Split Mode.
3. Create an entry with a negative amount to the wrong account number.
4. Create another entry with a positive amount to the correct account number.