In September 2021, we announced that the classic EAC would be deprecated for customers in our WW cloud in September 2022. Our customers gave us lots of feedback on the new design, performance of the ...
Updated Jul 24, 2023
Version 4.0
Blog Post
2 MIN READ
Final Deprecation of Classic Exchange Admin Center (EAC) in Exchange Online
BCart505 I get hit by the null auth token many times per day too, sent back to EXO Admin Center home page. I think it might be related to Continuous Access Evaluation and Exchange team going the full distance with supporting that feature. Continuous access evaluation in Microsoft Entra - Microsoft Entra ID | Microsoft Learn.
I use Privileged Identity Management each day to activate my assigned roles, and when I use EXO PowerShell, any changes in my activated roles will cause me to have to redo Connect-ExchangeOnline in order to regain functionality. I think this might be the exact same thing (CAE), just being experienced in PowerShell that way, vs how it plays out in EXO Admin Center. In the admin center, I think you get sent back to home even when there've been no role activation changes.
All that said, I don't see any mention of PIM or role activation/deactivation in the CAE documentation. So this is a guess for now. It would be nice if we could get sent back to wherever we were already at in the EXO Admin Center.