Office 365

#Restored the deleted user using the  -AutoReconcileProxyConflicts parameter
-:Connect

Connect-MsolService


-:To get a list of users in the recycle bin:

Get-MsolUser -ReturnDeletedUsers


-:Restore a deleted user that’s still in the recycle bin:

Restore-MsolUser –UserPrincipalName user@mydomain.com

Restore-MsolUser -UserPrincipalName "user@mydomain.com" -AutoReconcileProxyConflicts

Restore-MsolUser -UserPrincipalName "user00@mydomain.com" -NewUserPrincipalName "user99@shera.com"





#Rename UserPrincipalName

Connect-MsolService
Get-MsolUser -UserPrincipalName mf13_ir@shera.com |select DisplayName,SignInName,UserPrincipalName

Set-msoluserprincipalname -userprincipalname pawinee_p@shera.com -newuserprincipalname pawinee_p2@shera.com




#Removed the ImmutableID

Set-MSOLUser -UserPrincipalName user@domain.com -ImmutableID "$null"


#Add new the ImmutableID

$userUPN = "user@domain.com"
$guid = [guid]((Get-ADUser -LdapFilter "(userPrincipalName=$userUPN)").objectGuid)
$immutableId = [System.Convert]::ToBase64String($guid.ToByteArray())
$immutableId

Set-MsolUser -UserPrincipalName user@domain.com -ImmutableId 
$immutableId