We need to know the user token and user identifier in each social network (Facebook, Google). We need that because we make use of his profile from external applications. And it is only possible if the user has given his permissions in social network to share his data.
In PRISA there is one application that, with the user token and user identifier, it can obtain the detail of his profile in the social network. With this, we can use this data to make analytics for improvement the user experience.