- Go to Guests > Invoices
- Search for the invoice via the search window; search by invoice number, company name, guest name or structured message
- Click on
- In the popup window, enter the details
- Click on the Add and Confirm button
Practical tip
If you click the Add and Confirm button twice, the payment will be processed twice, resulting in an incorrect outstanding (or even negative) balance. You can solve this by adding a payment with negative balance. Enter 'Correction' as an internal reference.