Out of Order (OO) and Out of Service (OS) are two additional housekeeping statuses. These options are used when changing the status for rooms that should not be sold due to damage, maintenance, low occupancy wing, and so on. The difference between the two is:
Out of Order rooms are removed from room inventory and are not available for assignments to reservations. OO status is typically used for rooms removed from inventory for staff accommodation or for seasonal periods of low occupancy when rooms are dormant and not sold.
Out of Service rooms remain in room inventory and can still be reserved for a reservation. OS status is typically used for rooms with a temporary maintenance issue not preventing sale of the room.
Out of order rooms are removed from the total room inventory counts, reducing the total number of rooms available in your hotel. Therefore, for the period a room remains out of order, 100% occupancy is calculated based on Inventory Rooms - Out of Order Rooms. For example, if you have a 100-room property and 5 rooms are set to out of order status, 100% occupancy is reached when 95 rooms are occupied. Rooms in Out of Service status therefore impact Average Room Rate and RevPAR calculations.
If a room is placed Out of Service, it is available for the front desk for assignment and it remains in the total room inventory count.