Script Repository

try
{
    # Get the object ID in Microsoft 365
    $objectId = [Guid]$Context.TargetObject.Get("adm-O365ObjectId")
}
catch
{
    return # The user doesn't have a Microsoft 365 account
}

try
{
    # Connect to Exchange Online
    $session = $Context.CloudServices.CreateExchangeOnlinePSSession()
    Import-PSSession $session -AllowClobber -DisableNameChecking -CommandName "Get-Mailbox"
    
    # Get mailbox
    $mailbox = Get-Mailbox $objectId.ToString()
    
    # Update ExchangeGuid
    $Context.TargetObject.Put("msExchMailboxGuid", $mailbox.ExchangeGuid.ToByteArray())
    $Context.TargetObject.SetInfo()
}
finally
{
    # Close the remote session and release resources
    if ($session) { Remove-PSSession $session }
}