PowerShell source / read-only remote queries

Get-IntuneManagedDeviceInventory.ps1

Inventory Intune-managed devices and management attributes.

Requirements

Microsoft.Graph.Authentication; delegated sign-in with required consent; appropriate tenant service availability.

Permissions

DeviceManagementManagedDevices.Read.All

Expected output

Local CSV reports and console inventory. Tenant reads are read-only; creating report directories and files writes to the local filesystem.

Safety

Review against your environment before execution. Reports may contain personal or tenant identifiers. Do not publish live exports. This page does not run commands.

GitHub source Related project

Inspect complete script

<#
.SYNOPSIS
    Reports Microsoft Intune managed devices using Microsoft Graph.
#>

$ErrorActionPreference = "Stop"
$ProjectRoot=Split-Path $PSScriptRoot -Parent
$ReportsPath=Join-Path $ProjectRoot "reports"
if(-not(Test-Path $ReportsPath)){New-Item -ItemType Directory -Path $ReportsPath -Force|Out-Null}

Import-Module Microsoft.Graph.Authentication -ErrorAction Stop
$RequiredScopes=@("DeviceManagementManagedDevices.Read.All")

$Context=Get-MgContext
$ReconnectRequired=$false
if(-not $Context){$ReconnectRequired=$true}
else{
    $MissingScopes=@($RequiredScopes | Where-Object {$_ -notin @($Context.Scopes)})
    if($MissingScopes.Count -gt 0){$ReconnectRequired=$true}
}

if($ReconnectRequired){
    if($Context){try{Disconnect-MgGraph|Out-Null}catch{}}
    Connect-MgGraph -Scopes $RequiredScopes -UseDeviceCode -NoWelcome
    $Context=Get-MgContext
}
if(-not $Context){throw "Microsoft Graph authentication could not be established."}

$MissingScopes=@($RequiredScopes | Where-Object {$_ -notin @($Context.Scopes)})
if($MissingScopes.Count -gt 0){throw "Required scopes are still missing: $($MissingScopes -join ', ')"}

function Get-GraphCollection {
    param([Parameter(Mandatory=$true)][string]$Uri)
    $Results=@();$NextUri=$Uri
    while($NextUri){
        $Response=Invoke-MgGraphRequest -Method GET -Uri $NextUri
        if($Response["value"]){$Results+=@($Response["value"])}
        $NextUri=$Response["@odata.nextLink"]
    }
    return $Results
}

$GraphDevices=@(Get-GraphCollection -Uri "https://graph.microsoft.com/v1.0/deviceManagement/managedDevices?`$top=999")

$Devices=@(
    foreach($Device in $GraphDevices){
        [PSCustomObject]@{
            DeviceName=$Device["deviceName"];ManagedDeviceId=$Device["id"];AzureAdDeviceId=$Device["azureADDeviceId"]
            UserPrincipalName=$Device["userPrincipalName"];OperatingSystem=$Device["operatingSystem"]
            OSVersion=$Device["osVersion"];Manufacturer=$Device["manufacturer"];Model=$Device["model"]
            SerialNumber=$Device["serialNumber"];ComplianceState=$Device["complianceState"]
            ManagementAgent=$Device["managementAgent"];EnrollmentType=$Device["deviceEnrollmentType"]
            LastSyncDateTime=$Device["lastSyncDateTime"];EnrolledDateTime=$Device["enrolledDateTime"]
            IsEncrypted=$Device["isEncrypted"];DeviceRegistrationState=$Device["deviceRegistrationState"]
            ManagedDeviceOwnerType=$Device["managedDeviceOwnerType"]
        }
    }
)

$ReportPath=Join-Path $ReportsPath "Intune-Managed-Device-Inventory.csv"
$Devices|Sort-Object DeviceName|Export-Csv -Path $ReportPath -NoTypeInformation -Encoding UTF8

Write-Host "Total Managed Devices: $($Devices.Count)"
Write-Host "Compliant:             $(@($Devices|Where-Object ComplianceState -eq 'compliant').Count)"
Write-Host "Noncompliant:          $(@($Devices|Where-Object ComplianceState -eq 'noncompliant').Count)"
Write-Host "Encrypted:             $(@($Devices|Where-Object IsEncrypted -eq $true).Count)"
Write-Host "Report exported to: $ReportPath" -ForegroundColor Green