To remove an invoice with no payment applied to it
If you haven’t already read the Sales Overview, see Changing, removing and reversing sales for more information.
Use this procedure only if your transactions are changeable. See What are changeable and unchangeable transactions? for more information.
The invoice you want to remove should be displayed. If you need help doing this, see To find a sale.
Choose Delete Sale from the Edit menu.
To remove an invoice with no payment applied to it