+2Just a question, We busy in the process in configuring backups for office 365, exchange online to particular and i see i am getting this error in the Logs when it tries to scan for mailboxes. “ Failed to get Oauth2.0 token for powershell”.
We also configured for onedrive and sharepoint and those seem to be working 100%.
We on Version: 11.24.34
Best answer by Juan-Pierre Panaino
Thanks guys ,
Sorry only getting back now to you it was a permissions issue on azure we have a condional access policy that blocks legacy AUTH, and PowerShell is part of this policy i have then excluded my app registration from that policy and problem was resolved.
+23Hi
Disable multi-factor authentication or conditional access policies for the Exchange Online mailboxes that you want to configure for backup operations.
That should resolve the error.
Keep me posted!
+2Hi
So i set it up as express so the global admin account i used i did disable the MFA on it and it setup succesfully just when it refreshes for the users i see that error in the Log files.
+23That definitely should have worked.
I would go ahead and open a support case so they can see why it’s not acting as expected.
Can you share the case number here once created?
Are you able to connect to o365 via powershell? Something like this
Once complete you should be able to run get-mailbox to list the mailboxes.
This connection is where is failing you might need to run the following first
Set-ExecutionPolicy RemoteSigned
+2Thanks guys ,
Sorry only getting back now to you it was a permissions issue on azure we have a condional access policy that blocks legacy AUTH, and PowerShell is part of this policy i have then excluded my app registration from that policy and problem was resolved.
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