I'm having the same problem. Can easily export Booking.com calendar to Airbnb, but when I want to import the Airbnb calendar link, I keep getting "this is not a valid iCal URL link". I'm on Mac and don't want to start a Google calendar to try bypass via yet another 3rd party.
Hi Raymond, I closed both Booking and Airbnb sites a few times and tried uploading the Airbnb iCal link many times and it finally uploaded. Good luck!
I'm having the same problem. Can easily export Booking.com calendar to Airbnb, but when I want to import the Airbnb calendar link, I keep getting "this is not a valid iCal URL link". I'm on Mac and don't want to start a Google calendar to try bypass via yet another 3rd party.