To edit a payment, open up the booking record and go to the Finance tab. Click on the Link icon next to the payment reference number to open the payment screen. (N.B. if the payment is linked to an invoice, it must be unlinked before it can be edited click here for details on how to do this).
Make any necessary amendments to the payment and click the Save button to update. Any edits to the payments will be recorded in the booking Logs, along with the username of the staff member responsible and the date/time that the edit took place.