Solution

First, will need to create a Credit Invoice to reverse the existing invoice and second, create a New Invoice for the correct amount.

1. Create a Credit Invoice:
2. Edit the appointment and set the charges that have been invoiced to $0.00 in the Charge Amount column
   

3. Create a new debtor invoice or Create a new client invoice which should now show a negative amount for the appointment charges amounts that have been removed
   
   

4. Remove any other items than may appear on the invoice
5. Click Save.
6. Create a new debtor invoice or Create a new client invoice
7. Update the appointment to show the correct charges amounts
8. Create a new invoice.

You will have now 3 invoices

• The original invoice with the incorrect charges amounts
• The invoice with the incorrect charges amounts reversed (negative amount)
• The new invoice with the correct charges amounts.

All 3 invoices can be viewed when Creating a client statement.