For retreat hosts (account owner). Menu: Bookings & payouts → Calendar → iCal.
Check 1: is the calendar in a room?
Open Bookings & payouts → Calendar.
If you see "N imported events are not in a room yet. They do not block anything, so guests can still book those nights.", the calendar has no room.
Click a Busy bar in the Unassigned row and press Put in this room next to the right room.
To fix it for good, press iCal, press the pencil next to the calendar, choose its Room (optional) and press Save changes.
Check 2: is the link still working?
Press iCal. Each calendar shows when it last synced, such as "5 min ago". "Never synced" means it has never been read.
Press the refresh button next to the calendar. If the time doesn't change to "Just now", we couldn't read the link.
Copy the link again from the other site (some sites change it when you reset settings), press the pencil, paste it into Calendar address (URL) and press Save changes.
Check 3: has the other site read your link?
Other sites read your availability link on their own schedule, often every few hours. A new booking can take that long to show there.
Check you pasted a Share your availability link, not your private link from step 1.
If you pressed Make new links, every old link stopped working. Paste the new ones into each site.
Good to know
We check every connected calendar every 15 minutes.
If a booking is removed on the other site, it disappears here at the next check and the room frees up.
If a synced booking's dates change, it moves on your calendar and keeps its room.
A property's availability link shows dates as reserved only when every room is taken. To block a single room on another site, use that room's link.
Common questions
Why did a guest book a night that's busy on Airbnb?
That Airbnb booking either wasn't in a room yet, or arrived after the guest booked. Put synced calendars in rooms so they block straight away.
Can I force the other site to update?
No. Some sites have their own "refresh" or "sync now" button in their calendar settings.
Still stuck? Message us: go to Inbox → Messages, change All to Support and press Contact Support. Include the calendar name, the site it comes from and a date that's wrong.
Related: How do I sync my calendar with Airbnb, Booking.com or Google Calendar? · What's on my host calendar, and how do I read it?