Sign into your TripAdvisor account. You can also sign into HouseTrip, Niumba, HolidayLettings or FlipKey.
Select Calendar on the left-hand side.
Select 'Manage calendars, then 'Export this calendar'.
Copy the URL.
Select the listing on Uplisting you wish to sync with the TripAdvisor listing above.
Select the 'Connect' button on the TripAdvisor row.
Paste the iCalendar link copied from TripAdvisor.
Click 'Next sync availabilities' button to export your unavailabilities to TripAdvisor (instructions below).