If you're creating a new booking for the same client — for example, after an accidental double booking — you can apply what they already paid as a discount on the new booking instead of charging them again.
How to Apply a Prior Payment to a New Booking
Create the new booking for the client.
Open the new booking and click to edit it.
Scroll down to the Invoice Summary section and click Set booking discount or promo code.
Enter the total amount the client already paid on the canceled booking as the discount.
Add a note marking that the discount reflects a prior cancellation, for your reference.
Click Save at the top. A window will appear where you can send an invoice for any remaining balance — or click X to close it without sending the invoice yet.
How Fees Work
Fees are calculated on the amount collected in each transaction, so no new fees are charged on the discounted portion — the client already paid fees on the original payment. Fees apply only to any remaining balance you collect. If the client was fully paid, the new booking's balance will be $0 and no fees are charged.
To cancel the original booking first, see Cancel a Booking Without Refunding.