Hi facebook builders :)
Do you guys know how to get notified every time users click on call_to_action buttons? Those buttons are visible at many places in facebook page for example: on page, under post, under photo on mobile devices <- this is new since about a week!...
Currently, when user click on "Send Message", they are leaded to Facebook Messenger without our webhook-backend to be notified.
It would be great if we can catch the event! Thank you