If you have multiple inventory (multiple rooms) for the room type in a hotel-type property, you can link them to a single Airbnb listing and allocate inventory for the number of rooms to this one listing. (It is also possible to link multiple listings for the number of rooms.)
Open your property from the admin console and open the Airbnb channel from the Channel Manager > Channel Settings menu. Allocate inventory for the number of rooms to the maximum inventory quantity. For example, if there are 10 rooms in the room type, you can allocate up to 10 inventory quantities.
To do this, open the property from the admin console, open the Airbnb channel from the "Channel Manager" -> "Channel Settings" menu. Allocate inventory for the number of rooms to the maximum inventory number. For example, if there are 10 rooms in a room type, you can allocate inventory up to 10.
Set the property type on Airbnb as a hotel type as shown below.
Once reviewed by Airbnb, your listing can have multiple inventory.
*To change the property type to hotel type, permission from the inn business is required.