Updating email aliases for users on Office 365 admin portal. After updating around 10 users, the below error started popping up trying to save any changes.

[EXO Outage] NotFound received from

[EXO Outage] NotFound received from

Office 365 Heath page wasn't reporting any issues. Logging out and then back in using another browser didn't help.



I wanted to try making changes using PowerShell and logged on with Connect-ExchangeOnline. As soon as I've done that, the issue went away and I was once again able to change aliases in Office 365 admin portal. Now, this could have been a complete coincidence and the issue was actually a temporary glitch on Microsoft's servers, but I had no way to test that...

March 2023
Microsoft Office 365 Admin Portal

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