From 1ea58aeb87ba07326dd9d83fbf943b400ef92aac Mon Sep 17 00:00:00 2001
From: Nik Charlebois <nik_charlebois@hotmail.com>
Date: Fri, 28 Jul 2023 09:17:57 -0400
Subject: [PATCH 1/2] Update M365DSCReport.psm1

---
 Modules/Microsoft365DSC/Modules/M365DSCReport.psm1 | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Modules/Microsoft365DSC/Modules/M365DSCReport.psm1 b/Modules/Microsoft365DSC/Modules/M365DSCReport.psm1
index 47ad83bce2..f88a50482d 100644
--- a/Modules/Microsoft365DSC/Modules/M365DSCReport.psm1
+++ b/Modules/Microsoft365DSC/Modules/M365DSCReport.psm1
@@ -737,7 +737,7 @@ function Compare-M365DSCConfigurations
                                             $foundResourceMatch = $true
                                             foreach ($property in $instance.Keys)
                                             {
-                                                if ($null -ne (Compare-Object -ReferenceObject ($instance."$property")`
+                                                if ($null -eq $destinationResourceInstance."$property" -or $null -ne (Compare-Object -ReferenceObject ($instance."$property")`
                                                     -DifferenceObject ($destinationResourceInstance."$property")))
                                                 {
                                                     $drift = @{
@@ -885,7 +885,7 @@ function Compare-M365DSCConfigurations
                                         {
                                             foreach ($property in $instance.Keys)
                                             {
-                                                if ($null -ne (Compare-Object -ReferenceObject ($instance."$property")`
+                                                if ($null -eq $sourceRsourceInstance."$property" -or $null -ne (Compare-Object -ReferenceObject ($instance."$property")`
                                                     -DifferenceObject ($sourceResourceInstance."$property")))
                                                 {
                                                     # Make sure we haven't already added this drift in the delta return object to prevent duplicates.

From 8e96b46a477f135e99c1809f365f43f6f42ec554 Mon Sep 17 00:00:00 2001
From: Nik Charlebois <nik_charlebois@hotmail.com>
Date: Fri, 28 Jul 2023 09:30:13 -0400
Subject: [PATCH 2/2] FIXES #3478

---
 CHANGELOG.md                                  |  2 ++
 .../Modules/M365DSCReport.psm1                | 28 +++++++++++--------
 2 files changed, 18 insertions(+), 12 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index e9e656d0ed..69e12306ca 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -16,6 +16,8 @@
 * MISC
   * M365DscReverse: Fix exporting when $Filter var exists locally
     FIXES [#3515](https://github.com/microsoft/Microsoft365DSC/issues/3515)
+  * Fix for the delta report function to handle deep nested CIM Instances.
+    FIXES [#3478](https://github.com/microsoft/Microsoft365DSC/issues/3478)
 * DEPENDENCIES
   * Updated Microsoft.Graph.* dependencies to version 2.2.0.
   * Updated dependency Microsoft.PowerApps.Administration.PowerShell to version 2.0.170.
diff --git a/Modules/Microsoft365DSC/Modules/M365DSCReport.psm1 b/Modules/Microsoft365DSC/Modules/M365DSCReport.psm1
index f88a50482d..8866b59c32 100644
--- a/Modules/Microsoft365DSC/Modules/M365DSCReport.psm1
+++ b/Modules/Microsoft365DSC/Modules/M365DSCReport.psm1
@@ -15,29 +15,29 @@ Function New-M365DSCConfigurationToMarkdown
           [Parameter()]
           [Array]
           $ParsedContent,
-  
+
           [Parameter()]
           [System.String]
           $OutputPath,
-  
+
           [Parameter()]
           [System.String]
           $TemplateName,
-  
+
           [Parameter()]
           [Switch]
           $SortProperties
       )
-  
+
       $crlf = "`r`n"
       if ([System.String]::IsNullOrEmpty($TemplateName))
       {
           $TemplateName = 'Configuration Report'
       }
-  
+
       Write-Output 'Generating Markdown report'
       $fullMD = "# " + $TemplateName + $crlf
-  
+
       $totalCount = $parsedContent.Count
       $currentCount = 0
       foreach ($resource in $parsedContent)
@@ -45,7 +45,7 @@ Function New-M365DSCConfigurationToMarkdown
           # Create a new table for each resource
           $percentage = [math]::Round(($currentCount / $totalCount) * 100, 2)
           Write-Progress -Activity 'Processing generated DSC Object' -Status ("{0:N2} completed - $($resource.ResourceName)" -f $percentage) -PercentComplete $percentage
-  
+
           $fullMD += "## " + $resource.ResourceInstanceName + $crlf
           $fullMD += "|Item|Value|`r`n"
           $fullMD += "|:---|:---|`r`n"
@@ -57,7 +57,7 @@ Function New-M365DSCConfigurationToMarkdown
           {
               $properties = $resource.Keys
           }
-  
+
           foreach ($property in $properties)
           {
               if ($property -ne 'ResourceName' `
@@ -115,19 +115,19 @@ Function New-M365DSCConfigurationToMarkdown
                   $partMD += $value + $crlf
               }
           }
-  
+
           $fullMD += $partMD + $crlf
           $partMD = ""
-  
+
           $currentCount++
       }
-  
+
       if (-not [System.String]::IsNullOrEmpty($OutputPath))
       {
           Write-Output 'Saving Markdown report'
           $fullMD | Out-File $OutputPath
       }
-  
+
       Write-Output 'Completed generating Markdown report'
   }
 
@@ -1104,6 +1104,10 @@ function Get-M365DSCCIMInstanceKey
     {
         $primaryKey = 'Usage'
     }
+    elseif ($CIMInstance.ContainsKey("odataType"))
+    {
+        $primaryKey = 'odataType'
+    }
     return $primaryKey
 }