I have set up a SharePoint 2013 environment and am using Azure ACS to authenticate users via Google.
This is working really well, however in the top right corner where my user is logged in, it's displaying their name as "https://www.google.com/accounts/o8/id?id=aaaaaaaaaanaaaan".
I would prefer to have their User ID displayed as "firstname.lastname@example.org".
Is there a quick way I can change this, for all users and new users, via PowerShell?
My technical skills are very limited on SahrePoint 2013, so if anyone can help with a quick PowerShell script, that would really, really be appreciated.