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sweeneyrobb/mass-update-office-365-upns.ps1

Created January 8, 2018 19:25
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A PowerShell script that will mass assign UPNs for users in previous domain.
Raw
mass-update-office-365-upns.ps1
$oldSuffix = "old-domain.com"
$newSuffix = "new-domain.com"
Get-MsolUser |
Where-Object { $_.UserPrincipalName.EndsWith($oldSuffix) } |
ForEach-Object {
Set-MsolUserPrincipalName -ObjectId $_.ObjectID -NewUserPrincipalName ($_.UserPrincipalName.Replace($oldSuffix, $newSuffix))
}
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