diff --git a/CHANGELOG.md b/CHANGELOG.md
index 26c7c85ccc..bb1487b431 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,9 @@
   * Initial release
 * IntuneDeviceConfigurationKioskPolicyWindows10
   * Initial release
+* EXOManagementRoleAssignment
+  * Fixed issue with incorrect Microsoft Graph cmdlets used to retrieve Administrative Units.
+    FIXES [#3185](https://github.com/microsoft/Microsoft365DSC/issues/3185)
 * SCLabelPolicy
   * If label policy is set to None don't get its label display name since it's not required
     FIXES [#3104](https://github.com/microsoft/Microsoft365DSC/issues/3104)
diff --git a/Modules/Microsoft365DSC/DSCResources/MSFT_EXOManagementRoleAssignment/MSFT_EXOManagementRoleAssignment.psm1 b/Modules/Microsoft365DSC/DSCResources/MSFT_EXOManagementRoleAssignment/MSFT_EXOManagementRoleAssignment.psm1
index c11267c968..261c43d6fe 100644
--- a/Modules/Microsoft365DSC/DSCResources/MSFT_EXOManagementRoleAssignment/MSFT_EXOManagementRoleAssignment.psm1
+++ b/Modules/Microsoft365DSC/DSCResources/MSFT_EXOManagementRoleAssignment/MSFT_EXOManagementRoleAssignment.psm1
@@ -131,7 +131,7 @@ function Get-TargetResource
             {
                 $ConnectionMode = New-M365DSCConnection -Workload 'MicrosoftGraph' `
                     -InboundParameters $PSBoundParameters
-                $adminUnit = Get-MgAdministrativeUnit -AdministrativeUnitId $roleAssignment.CustomRecipientWriteScope
+                $adminUnit = Get-MgDirectoryAdministrativeUnit -AdministrativeUnitId $roleAssignment.CustomRecipientWriteScope
 
                 if ($RecipientAdministrativeUnitScope -eq $adminUnit.Id)
                 {
@@ -315,12 +315,14 @@ function Set-TargetResource
     if (-not [System.String]::IsNullOrEmpty($RecipientAdministrativeUnitScope))
     {
         $NewManagementRoleParams.Remove('CustomRecipientWriteScope') | Out-Null
-        $adminUnit = Get-AdministrativeUnit -Identity $RecipientAdministrativeUnitScope -ErrorAction SilentlyContinue
+        $ConnectionMode = New-M365DSCConnection -Workload 'MicrosoftGraph' `
+            -InboundParameters $PSBoundParameters
+        $adminUnit = Get-MgDirectoryAdministrativeUnit -AdministrativeUnitId $RecipientAdministrativeUnitScope -ErrorAction SilentlyContinue
         if ($null -eq $adminUnit)
         {
-            $adminUnit = Get-AdministrativeUnit | Where-Object -FilterScript { $_.DisplayName -eq $RecipientAdministrativeUnitScope }
+            $adminUnit = Get-MgDirectoryAdministrativeUnit -All | Where-Object -FilterScript { $_.DisplayName -eq $RecipientAdministrativeUnitScope }
         }
-        $NewManagementRoleParams.RecipientAdministrativeUnitScope = $adminUnit.Name
+        $NewManagementRoleParams.RecipientAdministrativeUnitScope = $adminUnit.Id
     }
 
     # CASE: Management Role doesn't exist but should;