[#7905] Family Shared Plans

Are you using the accept link sent in the email? CB and CBSubs don't have a "Please login first" error. That's a Joomla error. More specifically it's the language string JGLOBAL_YOU_MUST_LOGIN_FIRST. That assumes the "Login or subscribe text (displayed if not logged in)" parameter in CBSubs > Settings > Display > Plans wasn't set to just "Please login first". The JGLOBAL_YOU_MUST_LOGIN_FIRST message would suggest a Joomla authorization error. Compare the Itemid in the accept URL to your Joomla menu items and ensure the menu item Access is set to Public.

Thanks for the advice to check menu item access Krileon. I had a menu item to the cb user profile that was not accessible to the public (registered status required) and when following the link in the sharing email generated the login error not surprisingly. Changing that to public access successfully achieved the outcome intended as detailed in your previous post - much appreciated!