Set the webhook like this:
URL = <nowiki>https://api.beds24.com/json/setBooking</nowiki>
Custom Header = [leave empty]
Body Data =
{
"authentication": { "apiKey": "my_very_secret_api_key", "propKey": "secret_key_for_prop_XXXXXX" }, "bookId": "[BOOKID]", "message": "[MESSAGE] - Append this message"
}