Fix Azure AD Sync

Connect via Connect-MsolService Disable Directory Sync (could take up to 72h for completion, status shows false prior to that): <syntaxhighlight lang=powershell>Set-MsolDirSyncEnabled –EnableDirSync $false</syntaxhighlight>

Check status (should be false): <syntaxhighlight lang=powershell>(Get-MSOLCompanyInformation).DirectorySynchronizationEnabled</syntaxhighlight>

Generate new ImmutableId from domain account for sourceAnchor (here: objectGuid): <syntaxhighlight lang=powershell>[system.convert]::ToBase64String((Get-ADUser user).objectGUid.ToByteArray())</syntaxhighlight>

Set new ImmutableId for MsolUser: <syntaxhighlight lang=powershell>Set-MsolUser -UserPrincipalName user@contoso.com -ImmutableId "01234567890123456789=="</syntaxhighlight>

Enable Directory Sync (only possible after disabling has completed, could take 24h hours after enabling to complete): <syntaxhighlight lang=powershell>Set-MsolDirSyncEnabled –EnableDirSync $true</syntaxhighlight>