When Booking.com is collecting the money on your behalf, you can decide how the customer payment tab is reflecting this fact.
There are three possible option you can choose from:
No action
No action is taken and no link is made between the payment in Booking.com and the SuperControl booking.
This means, in the booking the money is showing as due.
Mark as paid
Automatically marks the booking in SuperControl as fully paid.
The guest is paying Booking.com directly, but the booking is reflecting that no money is due to be collected by yourself.
Log only
This will add a notification into the History & Correspondence tab. X amount was paid to Booking.com by the guest directly. This option also adds a system alert into your account.
To select the appropriate option for your business go to Integrations > Channel Manager > International> Booking.com, and scroll to the bottom of the page.
This is the option that allows you to select one of the three options:
Make sure to click Save after changing the setting.