I have repeatedly seen that SharePoint doesn't support SAML 2.0. What does that really mean and how might SharePoint admins and developers be impacted?
My specific scenario is that I want to connect to an external app via a custom SharePoint solution. I can authenticate to that app via SAML 2.0 through ADFS. That app only supports SAML 2.0, not SAML 1.1. If a user is already authenticated through ADFS via SharePoint (Service Provider Initiated Login) can I then use those credentials to connect to a 3rd party app utilizing those credentials (Identity Provider Initiated Login)?