If you have multiple listings on Airbnb (for example, an entire home and a room inside that home), you can link their Airbnb calendars to prevent double-bookings.
To link Airbnb calendars for multiple listings:
- Go to Listings on airbnb.com and click a listing whose calendar you'd like to link
- Click Availability
- Next to Linked Airbnb calendars, click Link
- Click Create linked calendars, then select the listing for the entire home you’d like to link to other calendars
- Click Next
- Select the listings inside of the home, then click Save
Note: If you don’t indicate that the listings are connected, a reservation for one listing won’t automatically block those reservation dates on the other listing's calendar. For example, if the primary listing is booked for a certain date, then it will block that date on the calendars of any listings under it, and vice versa. However, if you block a date on a calendar of a listing under the primary listing, it won't block the calendars of other listings at that level, only the calendar of the primary listing it's linked to.\
https://www.airbnb.com/help/article/1864/how-do-i-link-airbnb-calendars-for-multiple-listings