Hi Fabian Mendoza,

If I understand correctly the above, when a new user registered at your site, you would like to know 'who' actually invited the new user? If that is the case, EasySocial actually logged this information and when the 'invited' user registered, this user will automatically sent a friend request to person who invited them. However, currently there is no interface for admin to access this information. If you check on this table '#__social_friends_invitations', the column 'user_id' is the person who sent the invitation and 'registered_id' is the person who being invited and registered at the site

Hope this help.