Powershell to compare groups and add users based on comparison

I am not a script writer and I'm looking for a way to take a security group that was created in Azure AD and update a distribution group with any additions/deletions made to that group. The situatio...

azure active directory

office 365

AndySvints

Iron Contributor

Nov 17, 2022

Hello kleblanc4951,

You can use Compare-Object and then based on the SideIndicator remove or add members to Distribution list.

Quick and dirty way would be something like this:

$AzADGroup=Get-AzureADGroupMember -ObjectId "73a2e3e3-21f2-4856-8651-4a03a980014f" -All $true | select DisplayName, UserPrincipalName
$DL=Get-DistributionGroupMember -Identity "iPhone Notifications" | select Identity, PrimarySMTPAddress

$Comparison=Compare-Object -ReferenceObject $AzADGroup.UserPrincipalName -DifferenceObject $DL.PrimarySMTPAddress

foreach ($i in $Comparison){
	if($i.SideIndicator -eq "=>"){
		#Listed in DL but not in AzureADGroup
		#Remove from DL membership
		Write-output "Remove $($i.InputObject) from DL"
	}elseif($i.SideIndicator -eq "<="){
		#Listed in AzureAd but not in DL
		#Add to DL Membersip
		Write-output "Add $($i.InputObject) to DL"
	}
}

Hope that helps.

kleblanc4951

Copper Contributor

Nov 22, 2022

AndySvints

Thanks so much for the information! I will play around with that for a bit and see what I can do. For the moment I'm exporting the list of members from the security group then using Update-DistributionGroupMember to update the distribution group by importing the list.

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Powershell to compare groups and add users based on comparison

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