In order to edit an invoice, go to the Transactions page from the Financials menu. You will see all invoices for the current month here.
Find the needed one and click three dots next to the invoice to access the quick actions menu. Choose to edit it:
You may also click on the invoice you want to edit to open its details:
Press on Edit at the top of the page, make any necessary changes in the pop-up, and select the Confirm button:
You can also edit the payment details for the invoice. For that, scroll a bit down to the Payment & Activity section and press on the three-dots menu. Select the Edit option, update the payment information, and confirm your action. From here, you can also delete the payment or record it as refunded.
Note! You cannot edit invoices that are void or waived.