Once you've created an invoice and taken a payment, you may want to edit or delete this payment. In order to do this you need to click into the invoice as below:
Click the edit icon to edit the invoice:
You will then see "Payments" as circle below:
If you would like to edit this payment, click into it. This will then appear as below, allowing you to edit "Date", "Payment type", add "Comments", and "Amount" as circled below:
Once you've completed your changes, click the tick as shown below:
This will then appear as below:
You will be able to click "Save" in the top left hand corner in order to save your changes.
Please note that you will be unable to edit payments if you are integrated with Xero.