Hi! M-Epifanio and welcome to the forum. I have synchronized my calendars and it really works. No overbooking has occurred since now. That might happen only if guests make a reservation the same moment.
I wish you good luck.

It does work. Be sure to make links in both directions. That is:
- Go to Airbnb -> export -> go to Booking -> import
- Go to Booking -> export -> go to Airbnb -> import

In his way, when guest reserves your property at one service, it will be automatically marked as reserved at the other.

M. Adamopoulou said that overbooking might happen only if guests make a reservation the same moment. Synchronization is done automatically, at some regular time periods. If you want to do it immediately, you can do it manually, by clicking update/refresh (both Airbnb and Booking have it).

Hi! AG-Lodging and welcome to the forum. Synchronization works. Booking.com informed that overbooking might happen only if guests make a reservation the same moment. So I thought to share it with you.
Happy holidays!!!

New to the linking idea. What is needed and how much does it cost to do this linking. I use booking.com, Expedia.com, Hotel Bonanza and Webervations right now and want to add Airbnb.

Wayne TGH B&B Owner

PS I use a photo of my B&B as you can't even tell it's me in a close up photo.

https://partnerhelp.booking.coHello! Wayne-Cahoon and welcome to the forum. No cost for synchronization you do it yourself though your Extranet inbox. Follow AG Lodging instructions.

Help please, I can't find/see the option sync calendar. When I go to my listings and choose one all I see is


I was following these instructions
How to import or export a calendar

Hello!-Vazquezaleks and welcome to the forum.

Swich to your montly calendar. Go to the bottom left hand side and you will find import-export calendar. Using your URL address you will manage to sync your calendars.

Wish you luck...