FaceBook API has updated on April 30th 2014, so it's impossible to send invitations on normal way as before, we have to adjust in source code to find another method. As be found presently, it's Facebook Game API, we'll base on it to send invitations

Screen Shot 2017-09-20 at 4.04.53 PM

This API requires strictly conditions

1. URL to callback back site has to be HTTPS

2. Category to choose for Facebook App is Games

February 9, 2018
Category: Contact Importer