Hi,
When we migrated our O365 Environment from ADFS to Ping Federate, we noticed some sign in issues with Outlook Client. It was understood that users would not be able to sign in to their Outlook Client during the migration period. Once we broke the trust with ADFS and Federate the Trust with Ping Federate, there was a period of time where users using Outlook Client could still not sign in. Web Browsers worked right away. The issue seems to be with how Outlook Client handles cached sessions or access tokens. After a variable period of time users can all connect using their Outlook Client but is there a way to force Outlook Client to purge the stale sessions and force it to sign in to O365?
Thanks,
Kevin C.
kconway@fnal.gov