The team is already in the property. Complete or cancel the task under Cleaning before changing the check-out time.
You tried to change a booking's check-out time (or date) and the screen answered (in Portuguese):
Or, when approving a Late Checkout:
That booking's cleaning task is In progress: somebody clicked Start — on the Cleaning screen or in the team portal — and is preparing the property right now. Changing the check-out now would silently reschedule a cleaning that is already happening, and the team would find out later that they should have been there at a different time. That is why the change is refused, and nothing was saved.
1. Go to Cleaning and find the booking's task (filter Today or Upcoming). The card shows the status In progress.
2. If the cleaning is finished, click the green Complete icon on the right of the card. The status becomes Completed.
3. If the cleaning is not going to happen now, click the person icon (Assign staff) next to it. A panel opens with two rows: Assign staff:, with the team's names, and right below it Status:, with the buttons Pending, Scheduled, In progress, Completed and Cancelled. Click Cancelled. In a narrow window the status row can be cut off on the right — widen the window or scroll the content sideways.
4. Go back to the booking and change the check-out as usual.
If the task was started by mistake and the cleaning is still going to happen, cancel it and create another one under Cleaning → New task, with the right date and time.
Only the booking's check-out is locked while the cleaning is in progress. Changing the name, phone, e-mail, notes, amount and the arrival time keeps working normally.
With the task Completed, the check-out change is accepted — and the platform shows no warning at all. The booking moves to the new time and the task stays exactly as it was: a booking changed to leave at 12:00 keeps its cleaning scheduled 11:00–13:00 and marked completed, with no sign on screen, neither on the booking nor under Cleaning. Whenever you change a booking's check-out after its cleaning was completed, check the task under Cleaning: if the preparation still has to happen after the new check-out, create a new task under New task, at the right time, and assign the staff.
To understand the whole protection, see Cleaning window between bookings.
Cleaning window between bookings
Reserve preparation time after every check-out and stop a new arrival, a time change or an Early/Late request from eating into it.
I turned the protection on and now everything fails
If the default check-out plus the cleaning time goes past the default check-in, no back-to-back booking fits. See the formula and the three ways to fix it.