diff --git a/Autopilot/Test-AutopilotAzureADDeviceAssociation.ps1 b/Autopilot/Test-AutopilotAzureADDeviceAssociation.ps1
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+<#PSScriptInfo
+.VERSION 1.0.0
+.GUID c30dcb72-e391-49ae-ad06-e5438b8c72a1
+.AUTHOR NickolajA
+.DESCRIPTION Validate that the configured Azure AD device record for all Autopilot device identities exist in Azure AD.
+.COMPANYNAME MSEndpointMgr
+.COPYRIGHT 
+.TAGS AzureAD Autopilot Windows Intune
+.LICENSEURI 
+.PROJECTURI https://github.com/MSEndpointMgr/Intune/blob/master/Autopilot/Test-AutopilotAzureADDeviceAssociation.ps1
+.ICONURI 
+.EXTERNALMODULEDEPENDENCIES 
+.REQUIREDSCRIPTS 
+.EXTERNALSCRIPTDEPENDENCIES 
+.RELEASENOTES
+#>
+#Requires -Module MSGraphRequest
+#Requires -Module MSAL.PS
+<#
+.SYNOPSIS
+    Validate that the configured Azure AD device record for all Autopilot device identities exist in Azure AD.
+
+.DESCRIPTION
+    This script will retrieve all Autopilot identities and foreach validate if the given Azure AD device record that's 
+    currently associated actually exist in Azure AD.
+
+.PARAMETER TenantID
+    Specify the tenant name or ID, e.g. tenant.onmicrosoft.com or <GUID>.
+
+.EXAMPLE
+    .\Test-AutopilotAzureADDeviceAssociation.ps1 -TenantID "tenantname.onmicrosoft.com"
+
+.NOTES
+    FileName:    Test-AutopilotAzureADDeviceAssociation.ps1
+    Author:      Nickolaj Andersen
+    Contact:     @NickolajA
+    Created:     2021-05-06
+    Updated:     2021-05-06
+
+    Version history:
+    1.0.0 - (2021-05-06) Script created
+#>
+[CmdletBinding(SupportsShouldProcess = $true)]
+param(
+    [parameter(Mandatory = $true, HelpMessage = "Specify the tenant name or ID, e.g. tenant.onmicrosoft.com or <GUID>.")]
+    [ValidateNotNullOrEmpty()]
+    [string]$TenantID
+)
+Process {
+    # Functions
+    function Get-AutopilotDevice {
+        <#
+        .SYNOPSIS
+            Retrieve all Autopilot device identities.
+            
+        .DESCRIPTION
+            Retrieve all Autopilot device identities.
+            
+        .NOTES
+            Author:      Nickolaj Andersen
+            Contact:     @NickolajA
+            Created:     2021-01-27
+            Updated:     2021-01-27
+
+            Version history:
+            1.0.0 - (2021-01-27) Function created
+        #>    
+        Process {
+            # Retrieve all Windows Autopilot device identities
+            $ResourceURI = "deviceManagement/windowsAutopilotDeviceIdentities"
+            $GraphResponse = Invoke-MSGraphOperation -Get -APIVersion "Beta" -Resource $ResourceURI
+
+            # Handle return response
+            return $GraphResponse
+        }
+    }
+
+    function Get-AzureADDeviceRecord {
+        <#
+        .SYNOPSIS
+            Retrieve an Azure AD device record.
+            
+        .DESCRIPTION
+            Retrieve an Azure AD device record.
+
+        .PARAMETER DeviceId
+            Specify the Device ID of the Azure AD device record.
+            
+        .NOTES
+            Author:      Nickolaj Andersen
+            Contact:     @NickolajA
+            Created:     2021-05-05
+            Updated:     2021-05-05
+
+            Version history:
+            1.0.0 - (2021-05-05) Function created
+        #> 
+        param(
+            [parameter(Mandatory = $true, HelpMessage = "Specify the Device ID of the Azure AD device record.")]
+            [ValidateNotNullOrEmpty()]
+            [string]$DeviceId
+        )   
+        Process {
+            # Retrieve all Windows Autopilot device identities
+            $ResourceURI = "devices?`$filter=deviceId eq '$($DeviceId)'"
+            $GraphResponse = (Invoke-MSGraphOperation -Get -APIVersion "v1.0" -Resource $ResourceURI).value
+
+            # Handle return response
+            return $GraphResponse
+        }
+    }
+
+    # Get access token
+    $AccessToken = Get-AccessToken -TenantID $TenantID
+
+    # Construct array list for all Autopilot device identities with broken associations
+    $AutopilotDeviceList = New-Object -TypeName "System.Collections.ArrayList"
+
+    # Gather Autopilot device details
+    Write-Verbose -Message "Attempting to retrieve all Autopilot device identities, this could take some time"
+    $AutopilotDevices = Get-AutopilotDevice
+
+    # Measure detected Autopilot identities count
+    $AutopilotIdentitiesCount = ($AutopilotDevices | Measure-Object).Count
+
+    if ($AutopilotDevices -ne $null) {
+        Write-Verbose -Message "Detected count of Autopilot identities: $($AutopilotIdentitiesCount)"
+
+        # Construct and start a timer for output
+        $Timer = [System.Diagnostics.Stopwatch]::StartNew()
+        $AutopilotIdentitiesCurrentCount = 0
+        $SecondsCount = 0
+
+        # Process each Autopilot device identity
+        foreach ($AutopilotDevice in $AutopilotDevices) {
+            # Increase current progress count
+            $AutopilotIdentitiesCurrentCount++
+
+            # Handle output count for progress visibility
+            if ([math]::Round($Timer.Elapsed.TotalSeconds) -gt ($SecondsCount + 30)) {
+                # Increase minutes count for next output frequence
+                $SecondsCount = [math]::Round($Timer.Elapsed.TotalSeconds)
+
+                # Write output every 30 seconds
+                Write-Verbose -Message "Elapsed time: $($Timer.Elapsed.Hours) hour $($Timer.Elapsed.Minutes) min $($Timer.Elapsed.Seconds) seconds"
+                Write-Verbose -Message "Progress count: $($AutopilotIdentitiesCurrentCount) / $($AutopilotIdentitiesCount)"
+                Write-Verbose -Message "Detected devices: $($AutopilotDeviceList.Count)"
+            }
+
+            # Handle access token refresh if required
+            $AccessTokenRenew = Test-AccessToken
+            if ($AccessTokenRenew -eq $false) {
+                $AccessToken = Get-AccessToken -TenantID $TenantID -Refresh
+            }
+
+            # Get Azure AD device record for associated device based on what's set for the Autopilot identity
+            $AzureADDevice = Get-AzureADDeviceRecord -DeviceId $AutopilotDevice.azureAdDeviceId
+            if ($AzureADDevice -eq $null) {
+                # Construct custom object for output
+                $PSObject = [PSCustomObject]@{
+                    Id = $AutopilotDevice.id
+                    SerialNumber = $AutopilotDevice.serialNumber
+                    Model = $AutopilotDevice.model
+                    Manufacturer = $AutopilotDevice.manufacturer
+                }
+                $AutopilotDeviceList.Add($PSObject) | Out-Null
+            }
+        }
+
+        # Handle output at script completion
+        Write-Verbose -Message "Successfully detected a total of '$($AutopilotDeviceList.Count)' Autopilot identities with a broken Azure AD device association"
+        Write-Output -InputObject $AutopilotDeviceList
+    }
+    else {
+        Write-Warning -Message "Could not detect any Autopilot device identities"
+    }
+}
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