PowerShell script for getting member count of a Dynamc Distribution Group - Exchange/ M365 /Hybrid

Question

I am trying to get member count of Dynamic Distribution group. Below command works well for single DDG

$member = Get-DynamicDistributionGroup -Identity "DDGName"
Get-Recipient -RecipientPreviewFilter $members.RecipientFilter -resultsize unlimited).count

I need help with a script that can generate member count for all the DDG's in my environment (Exchange 2016 in a hybrid setup)

I have tried passing multiple DDG's in a variable however I get below

Cannot process argument transformation on parameter 'Identity'. Cannot convert the "System.Collections.ArrayList"
value of type "System.Collections.ArrayList" to type "Microsoft.Exchange.Configuration.Tasks.DynamicGroupIdParameter".

• CategoryInfo : InvalidData: (:) [Get-DynamicDistributionGroup], ParameterBindin...mationException
• FullyQualifiedErrorId : ParameterArgumentTransformationError,Get-DynamicDistributionGroup

Answer 1

@Srbh_TheComputerGuy

This script below will be useful to you:

$DDGS = Get-DynamicDistributionGroup  
  
foreach($DDG in $DDGS){  
    $temp = $DDG.Name  
    $value = (Get-Recipient -RecipientPreviewFilter (Get-DynamicDistributionGroup $temp).RecipientFilter -resultsize unlimited | Measure-Object).count  
    Write-Host $temp" has "$value" Group Members"  
}  

Save this script into a .PS1 file, then run it in PowerShell:

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