A JSON formatted string containing the values you want to add, update, delete. See the details for further information.
Advanced: Register a custom action after the plugin fires this webhook.
(String) Register a custom WordPress hook callback. The value will be called as followed: do_action( $yourdefinedaction, $action_return_data, $request_data )
More available Advanced Custom Fields endpoints
To learn more about a specific endpoint, simply click on it.