Editing
Open the invoice and press Edit. Saving reposts its journal entry, so the document and your books cannot drift apart.
Four things are refused:
·A voided invoice cannot be edited. Duplicate it instead.
·It cannot be moved into, or out of, a closed period.
·The total cannot fall below what has already been paid — record a refund or a credit for that.
·Nothing saves if the entry cannot be reposted.
Voiding
A sent invoice is voided, which keeps its number and posts a reversing entry. Both stay visible.
Deleting
Only a draft can be deleted. The reason is the number, not the money: INV-0148, INV-0150 and nothing in between is the first thing an examiner asks about, and once the row is gone there is no way to answer.