I currently manage nearly 40 units and only use booking.com and Airbnb to get bookings. To not get overbookings I have been using the channel manager (Lodgify). However it’s quite expensive, and even though I know it has a lot more features other than the channel manager that’s the only I one use. That being said I’m considering to stop using a channel manager and just synchronize both calendars; Airbnb and Booking.com . However I am afraid I may get overbookings, which can be quite expensive. I have been told after synchronizing calendars when you get a booking the dates won’t be canceled on the other platforms right away and it takes a while. I know with Lodgify it takes around 10 seconds, which is pretty decent. However paying nearly 3.000 a year for that service is expensive. All I want is to get the calendars on Airbnb and Booking synchronized with a decent timing response to cancel dates on the oposite platforms.