Removing the ImmutableID from a Restored O365 Account

Connect to MSOL Service with the following powershell command:

Connect-msolservice

Set-msolUser -userprincipalname RESTORED USERS UPN -ImmutableID “$null”

After running this command, can verify that the ImmutableID has been removed by running the below get command:

Get-msoluser -userprincipalname RESTORED USERS UPN | Select ImmutableID

The results will comeback that the restored user does not have an ImmutableID

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(UPN = UserPrincipalName)

NOTE: If you do not have MSOL Service module installed on your device, you will need to run the following command to install in:

Install-Module MSOnline