Your Checkfront account is capable of directly POSTing details of new or modified bookings, items, item events, and transactions to your SSL-secured server endpoint.
Notifications are sent over a standard HTTPS POST request as JSON, XML, or x-www-form-urlencoded data.
Your server must respond with an HTTP 200 class status code immediately upon receipt. If your server does not indicate a successful response in a timely manner, after 5 consecutive failed delivery attempts, your webhook will be automatically disabled.
Webhook setup can be found in the Manage > Developer section of your Checkfront account under the “Webhooks” tab.