Azure AD Connect - Manually match On Premise AD-user to existing Office365 user

STnetwork

2023-09-20

azure ad, azure ad connect, office365, powershell

1	ldifde -d “DistinguishedName of the user : example : CN=user,OU=test,OU=Users,test=DC=test,DC=local” -f “c:\temp\exporteduser.txt”

[LDIFDE Export]

1	set-msoluser -userprincipalname [email protected] -ImmutableID tutCmzWErE+zYRZlFzK/1A==

Note: If doesn’t work from the first time. probably the ImmutableID is already set to a user. When you trying to set the ImmutableID, you will receive an error.

1	Get-MsolUser -All \| Where-Object {$_.ImmutableID -eq “tutCmzWErE+zYRZlFzK/1A==”}

Same result, but for the deleted users. Hard delete the user in Office 365 and you can set the ImmutableID for the correct user :

1	Get-MsolUser -All -ReturnDeletedUsers \| Where-Object {$_.ImmutableID -eq “tutCmzWErE+zYRZlFzK/1A==”}

1	Remove-MsolUser -UserPrincipalName [email protected] -RemoveFromRecycleBin