An invoice that has been paid can be edited by canceling the original payment transaction first and then proceeding to edit the information in the invoice following these steps."

Step 1: Go to "Revenue" menu, then select "Delivery Note/Invoice/Record AR" and select "Paid".

Step 2: Select the invoice number that you want to edit.

Step 3: Select the "Payment " tab, and then click on the three-dot icon displayed next to the payment entry. Click on the "Void" option to cancel the payment for this invoice.

Select "Confirm" to confirm the cancellation of the payment.

Step 4: When he payment has been successfully canceled, you can edit the information of the invoice by going back to the "Document" menu. Then, click on the dropdown menu for options and select "Edit".

Step 5: Edit the information in the invoice as desired. Then, click on "Save" to save the changes.