The following assumes that the invoice has not been exported.


Vouchered:

If the invoice was created from a Voucher, then the best approach is to:

- unapprove the AP Invoice

- then, delete the AP Invoice

- open the now cancelled Voucher

- click the Uncancel button

- make required changes, and reprocess

This will keep both documents in alignment and avoid potential confusion.


Not vouchered:

If the invoice was not created from a Voucher, then the best approach is to:

- create a new AP Invoice batch for the same period as the invoice

- use the "wbUtilityChangeBatchNoAPInvoice" Utility to move the invoice to the new batch

- use the "wbUtilityChangeAPInvoiceBatchDate" Utility to update the date of the new batch and the Year-Period of both the batch and the invoice