Why do you need to update an invoice when it has been paid?
As a school owner, you might want to change a fee a student pays on an item on his invoice, peradventure there was an error in the amount imputed. To edit/update an invoice:
Scroll to “Edit this invoice” and click on it
All the information on the invoice will become input form.
Edit the information you wish to edit on the invoice
Click “Save Changes”
NOTE: The changes you make to the payment item on the invoice applies only to that particular invoice. It doesn’t affect the payment item you’ve saved to the system, neither does it affect the amount saved to the payment item on the system.