Microsoft Graph API for Intune

The Microsoft Graph API is the modern way to automate Intune. If you’re still using legacy MSOnline or AzureADPreview modules, it’s time to migrate. Here’s how.

Authentication

App Registration Setup

1. Go to Azure Portal → App registrations
2. Create new registration
3. Add API permissions:
   • DeviceManagementManagedDevices.Read.All
   • DeviceManagementConfiguration.ReadWrite.All
   • DeviceManagementServiceConfiguration.ReadWrite.All
4. Grant admin consent
5. Create client secret

Connect via PowerShell

# Install Graph module
Install-Module Microsoft.Graph -Scope CurrentUser

# Connect with app
$ClientId = "your-app-id"
$TenantId = "your-tenant-id"
$ClientSecret = "your-secret"

$Body = @{
    Grant_Type    = "client_credentials"
    Scope        = "https://graph.microsoft.com/.default"
    Client_Id     = $ClientId
    Client_Secret = $ClientSecret
}

$TokenResponse = Invoke-RestMethod -Uri "https://login.microsoftonline.com/$TenantId/oauth2/v2.0/token" -Method POST -Body $Body

# Connect to Graph
Connect-MgGraph -AccessToken $TokenResponse.access_token

Common Intune Operations

Get All Devices

# Get all managed devices
Get-MgDeviceManagementManagedDevice -All | 
    Select-Object DeviceName, DeviceType, OperatingSystem, LastSyncDateTime

Get Specific Device

# Find by name
Get-MgDeviceManagementManagedDevice -Filter "deviceName eq 'LAPTOP-001'"

Sync a Device

# Trigger sync
$DeviceId = (Get-MgDeviceManagementManagedDevice -Filter "deviceName eq 'LAPTOP-001'").Id

Invoke-MgDeviceManagementManagedDeviceSyncDevice -ManagedDeviceId $DeviceId

Get Device Compliance

# Get compliance states
Get-MgDeviceManagementDeviceCompliancePolicy -All |
    Select-Object DisplayName, Id

Assign Policy to Group

# Get group ID
$GroupId = (Get-MgGroup -Filter "displayName eq 'IT Devices'").Id

# Get policy ID
$PolicyId = (Get-MgDeviceManagementDeviceConfiguration -Filter "displayName eq 'Security Policy'").Id

# Assign
$Params = @{
    "@odata.id" = "https://graph.microsoft.com/v1.0/groups('$GroupId')"
}

Invoke-MgDeviceManagementDeviceConfigurationAssign -DeviceConfigurationId $PolicyId -BodyParameter $Params

Creating Objects

Create Configuration Profile

$ProfileParams = @{
    "@odata.type" = "#microsoft.graph.windows10CustomConfiguration"
    DisplayName = "Custom Settings Profile"
    Description = "Created via Graph API"
    OmaSettings = @(
        @{
            "@odata.type" = "#microsoft.graph.omaSettingString"
            DisplayName = "Device Name"
            OmaUri = "./Vendor/MSFT/Device/Virtualization/WSName"
            Value = "CORP-{SERIAL}"
        }
    )
}

New-MgDeviceManagementDeviceConfiguration -BodyParameter $ProfileParams

Create Device Group

$GroupParams = @{
    DisplayName = "Windows 11 Devices"
    Description = "Devices running Windows 11"
    MailEnabled = $false
    MailNickname = "Win11Devices"
    SecurityEnabled = $true
}

New-MgGroup -BodyParameter $GroupParams

Error Handling

try {
    $Device = Get-MgDeviceManagementManagedDevice -DeviceId $DeviceId -ErrorAction Stop
}
catch {
    if ($_.Exception.Message -match "404") {
        Write-Host "Device not found"
    }
    else {
        throw $_
    }
}

Pagination

# Graph returns max 100 by default
# Use -Top for more
Get-MgDeviceManagementManagedDevice -Top 999 -All

Wrap-Up

Graph API is powerful but requires setup. Create an app registration, get permissions, and automate everything.

Questions? Drop them below!