If Inspected status is enabled.
1. When cleaner have marked a room as clean the room will get Pending inspected status.
2. Housekeeping manager can then mark the room as 'Clean' form 'Housekeeping>Room Status list'.
Room will not be able to check-in until it has status 'Clean/Vacant'.
The 'Pending Inspection status is visible in all places where the cleaning status of the room is visible.
For example in Arrival list.
Contact support if you want the function enabled.