Hi there, tracey43. Yes, you can delete or void the payment that was applied to the wrong invoice and then reapply it to the correct one.
Please note that voiding a transaction keeps a record of it with a zero balance, while deleting it removes the entire history and returns the invoice to an unpaid status. For record-keeping purposes, voiding is recommended over deleting because it maintains a record of the transaction in your records without affecting your totals.
Here's how to do it:
Go to the All apps tab.
Select Sales and Get Paid.
Open the payment you want to delete. Note:If you're unsure which payment is linked to the invoice, open the invoice and select the payment from the top right corner.