Заполняет SimpleDisplayName при создании почтового ящика

ScriptingAgentConfig.xml

<?xml version="1.0" encoding="utf-8" ?>
<Configuration version="1.0">
	<Feature Name="NewMailbox" Cmdlets="New-Mailbox">
		<ApiCall Name="OnComplete">
		If ($succeeded)
		{
			Start-Sleep -s 20
			$DC = [string]($readOnlyIConfigurable.originatingserver)
			$User = Get-User -Identity $provisioningHandler.UserSpecifiedParameters["Alias"]
			$Alias = Get-Mailbox -Identity $user.DistinguishedName

			If (($Alias.IsShared -eq $False) -and ($Alias.IsLinked -eq $False) -and ($Alias.IsResource -eq $False) -and ($Alias.IsRootPublicFolderMailbox -eq $False))
			{
	        		$SDN = "$($User.FirstName) $($User.LastName)";
	        		$SDN = $SDN.Trim();
                                If ($SDN -match '[A-Z]+') {
				    Set-User $User -simpleDisplayName $SDN
                                    }
			}
		}
		</ApiCall>
	</Feature>
	<Feature Name="EnableMailbox" Cmdlets="Enable-Mailbox">
		<ApiCall Name="OnComplete">
		If ($succeeded)
		{
			Start-Sleep -s 20
			$DC = [string]($readOnlyIConfigurable.originatingserver)
			$User = Get-User -Identity $provisioningHandler.UserSpecifiedParameters["Alias"]
			$Alias = Get-Mailbox -Identity $user.DistinguishedName
			
			If (($Alias.IsShared -eq $False) -and ($Alias.IsLinked -eq $False) -and ($Alias.IsResource -eq $False) -and ($Alias.IsRootPublicFolderMailbox -eq $False))
			{
				$SDN = "$($User.FirstName) $($User.LastName)"
				$SDN = $SDN.Trim()
                                If ($SDN -match '[A-Z]+') {
				    Set-User $User -simpleDisplayName $SDN
                                    }
			}
		}
		</ApiCall>
	</Feature>
</Configuration>