On the guest’s departure day, you can run the check-out in Roomdoo. Open the reservation, go to Reservation → Guests, and click Check out.
See here how to check in a guest in Roomdoo.
Check-in and check-out
How to check out a guest in Roomdoo
How to check out a reservation in Roomdoo on departure day: close the stay and get the room ready for the next sale.
Here’s how to check out a guest in Roomdoo: