diff --git a/transforms/csdl/preprocess_csdl.xsl b/transforms/csdl/preprocess_csdl.xsl
index c772a9748..ad13e5682 100644
--- a/transforms/csdl/preprocess_csdl.xsl
+++ b/transforms/csdl/preprocess_csdl.xsl
@@ -991,6 +991,15 @@
             </xsl:call-template>
         </xsl:copy>
     </xsl:template>
+    <!-- Add paths for user authentication requirements by adding annotations to update properties of the sitePage object-->
+    <xsl:template match="edm:Schema[@Namespace='microsoft.graph']/edm:EntityType[@Name='sitePage']">
+        <xsl:copy>
+            <xsl:apply-templates select="@* | node()"/>
+            <xsl:call-template name="UpdateRestrictionsTemplate">
+                <xsl:with-param name="updatable">true</xsl:with-param>
+            </xsl:call-template>
+        </xsl:copy>
+    </xsl:template>
     <!-- Add paths for user serviceProvisioningErrors by adding annotations to read complex property-->
     <xsl:template match="edm:Schema[@Namespace='microsoft.graph']/edm:EntityType[@Name='user']/edm:Property[@Name='serviceProvisioningErrors']|
                          edm:Schema[@Namespace='microsoft.graph']/edm:EntityType[@Name='group']/edm:Property[@Name='serviceProvisioningErrors']|
@@ -2193,6 +2202,7 @@
             </xsl:element>
         </xsl:copy>
     </xsl:template>
+
     
     <!-- If only the grand-parent "Annotations" tag exists, modify it -->
     <!-- Add UpdateRestrictions for crossTenantAccessPolicyConfigurationPartner/identitySynchronization navigation property -->
diff --git a/transforms/csdl/preprocess_csdl_test_input.xml b/transforms/csdl/preprocess_csdl_test_input.xml
index 2236314f5..f2539cd80 100644
--- a/transforms/csdl/preprocess_csdl_test_input.xml
+++ b/transforms/csdl/preprocess_csdl_test_input.xml
@@ -88,6 +88,14 @@
                 <Property Name="pageLayout" Type="graph.pageLayoutType" />
                 <Property Name="publishingState" Type="graph.publicationFacet" />
                 <Property Name="title" Type="Edm.String" />
+            </EntityType>
+                <EntityType Name="sitePage" BaseType="graph.baseSitePage" OpenType="true">
+                <Property Name="promotionKind" Type="graph.pagePromotionType"/>
+                <Property Name="reactions" Type="graph.reactionsFacet"/>
+                <Property Name="showComments" Type="Edm.Boolean"/>
+                <Property Name="showRecommendedPages" Type="Edm.Boolean"/>
+                <Property Name="thumbnailWebUrl" Type="Edm.String"/>
+                <Property Name="titleArea" Type="graph.titleArea"/>
             </EntityType>
             <EntityType Name="driveItem" BaseType="graph.baseItem">
                 <Property Name="content" Type="Edm.Stream" />
@@ -261,6 +269,14 @@
                     </Record>
                 </Annotation>
             </Annotations>
+            <Annotations Target="microsoft.graph.sitePage">                
+                <Annotation Term="Org.OData.Capabilities.V1.UpdateRestrictions">
+                    <Record>
+                        <PropertyValue Property="Description" String="Update properties of the sitePage object." />
+                        <PropertyValue Property="LongDescription" String="Update properties of the sitePage object." />
+                    </Record>
+                </Annotation>
+            </Annotations>
             <Annotations Target="microsoft.graph.driveItem/children">
                 <Annotation Term="Org.OData.Capabilities.V1.ReadRestrictions">
                     <Record>
diff --git a/transforms/csdl/preprocess_csdl_test_output.xml b/transforms/csdl/preprocess_csdl_test_output.xml
index b7abef69a..4310ed738 100644
--- a/transforms/csdl/preprocess_csdl_test_output.xml
+++ b/transforms/csdl/preprocess_csdl_test_output.xml
@@ -226,6 +226,10 @@
       <EntityType Name="synchronizationJob" BaseType="graph.entity">
         <NavigationProperty Name="schema" Type="graph.synchronizationSchema" ContainsTarget="true" />
       </EntityType>
+      <EntityType Name="schema" BaseType="graph.entity">
+        <Property Name="baseType" Type="Edm.String" Nullable="false" />
+        <Property Name="properties" Type="Collection(graph.property)" />
+      </EntityType>
       <EntityType Name="synchronizationSchema" BaseType="graph.entity">
         <Property Name="synchronizationRules" Type="Collection(graph.synchronizationRule)" />
         <Property Name="version" Type="Edm.String" />
@@ -353,6 +357,19 @@
         <Property Name="publishingState" Type="graph.publicationFacet" />
         <Property Name="title" Type="Edm.String" />
       </EntityType>
+      <EntityType Name="sitePage" BaseType="graph.baseSitePage" OpenType="true">
+        <Property Name="promotionKind" Type="graph.pagePromotionType" />
+        <Property Name="reactions" Type="graph.reactionsFacet" />
+        <Property Name="showComments" Type="Edm.Boolean" />
+        <Property Name="showRecommendedPages" Type="Edm.Boolean" />
+        <Property Name="thumbnailWebUrl" Type="Edm.String" />
+        <Property Name="titleArea" Type="graph.titleArea" />
+        <Annotation Term="Org.OData.Capabilities.V1.UpdateRestrictions">
+          <Record>
+            <PropertyValue Property="Updatable" Bool="true" />
+          </Record>
+        </Annotation>
+      </EntityType>
       <EntityType Name="driveItem" BaseType="graph.baseItem">
         <Property Name="content" Type="Edm.Stream">
           <Annotation Term="Org.OData.Capabilities.V1.ReadRestrictions">
@@ -767,6 +784,7 @@
           </Record>
         </Annotation>
       </Annotations>
+      <Annotations Target="microsoft.graph.sitePage" />
       <Annotations Target="microsoft.graph.driveItem/children">
         <Annotation Term="Org.OData.Capabilities.V1.ReadRestrictions">
           <Record>