This feature is ONLY accepted for hotel services, not for all services such as tours, activities, and rental services.
The calendar sync is a manual one-way sync, which means that it only synchronizes data from other systems to Traveler, not from Traveler to other systems. The sync process needs to be performed manually, as there is no automatic sync functionality available.
Step 1: Log in your account in the Airbnb website.
Step 2: In the dashboard, select Listings on the menu header.
Step 3: You can config calendar in Availability tab.
Step 4: After completed the step 3, scroll down to the bottom of page to get the calendar url at Export Calendar section.