How to add a payment to closed invoice

Click on a reservation

Click on the number of the Reservation

Click here

Make sure your invoice is Opened

And click on Save

Go back to your reservation

Click here to Add a Payment

Select the payment method

Click here to pay the full amount

Click on Add

Click on Add to invoice

Click here to select your reservation

Click to select the client's reservation

Click here to add your payment

And click on OK.This is how you can add a Payment to a created invoice.