XC Invite System - Redirect URL

Question: What are Redirect URL values for Google, Facebook and Linkedin

Answer: Considering XenForo being installed at http://www.site.com/community/ the redirect URLs are:
http://www.site.com/community/invite/handle-find-friend?core=OAuth2&provider=Google&source_id=1
http://www.site.com/community/invite/handle-find-friend?core=OAuth2&provider=Facebook&source_id=1
http://www.site.com/community/invite/handle-find-friend?core=OAuth2&provider=Linkedin&source_id=1

Question: I have set redirect URL for Google application, but still getting error about missing product title or missing email.

Answer: Make sure to check the section "Consent Screen" of your application and fill-in all details.