private/get-EntraGroupMembers.ps1
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function Get-EntraGroupMembers { <# Author = "Jos Lieben (jos@lieben.nu)" CompanyName = "Lieben Consultancy" Copyright = "https://www.lieben.nu/liebensraum/commercial-use/" #> Param( [Parameter(Mandatory=$true)]$groupId ) $groupMembers = new-GraphQuery -Method GET -Uri "https://graph.microsoft.com/v1.0/groups/$groupId/transitiveMembers" | Where-Object {$_ -and $_."@odata.type" -ne "#microsoft.graph.group" } for($i=0;$i -lt $groupMembers.count;$i++){ if($groupmembers[$i]."@odata.type" -eq "#microsoft.graph.user"){ if($groupMembers[$i].userPrincipalName -like "*#EXT#@*"){ $groupMembers[$i] | Add-Member -MemberType NoteProperty -Name "principalType" -Value "External User" -Force }else{ $groupMembers[$i] | Add-Member -MemberType NoteProperty -Name "principalType" -Value "Internal User" -Force } }else{ $groupMembers[$i] | Add-Member -MemberType NoteProperty -Name "principalType" -Value $groupmembers[$i]."@odata.type".Split(".")[2] -Force } } return $groupMembers } |