Question

How does Branchout custom their Request Dialog messages? There is no option for this.

The documentation https://developers.facebook.com/docs/reference/dialogs/requests/ doest mention any extra parameters, only app_id, redirect_uri, message ,to , filters , exclude_ids , max_recipients, data, title.

As im a new user, i cant post images.. Here are the links: https://i.stack.imgur.com/4tvPe.png ,

Im using the following javascript to call the facebook function:

FB.ui({
    method        : 'apprequests',
    message       : 'Message itself',
    title         : 'Title message',
    display       : 'iframe',
    access_token  : '(access_token)',
    to            : uids
}, function(response) {
  if (response)
  {
    // handle callback.....
    // (...)
  } 
});

Answer 1

There are some APIs with special privileges. You have to get a way of get in touch with Facebook. I don’t know any docs for it.