diff --git a/schemas/annotated-v1.0-Prod.csdl b/schemas/annotated-v1.0-Prod.csdl
index e749c8c28..f9dc07efc 100644
--- a/schemas/annotated-v1.0-Prod.csdl
+++ b/schemas/annotated-v1.0-Prod.csdl
@@ -11430,6 +11430,7 @@
       <EntityType Name="chat" BaseType="graph.entity">
         <Property Name="chatType" Type="graph.chatType" Nullable="false" />
         <Property Name="createdDateTime" Type="Edm.DateTimeOffset" />
+        <Property Name="isHiddenForAllMembers" Type="Edm.Boolean" />
         <Property Name="lastUpdatedDateTime" Type="Edm.DateTimeOffset" />
         <Property Name="onlineMeetingInfo" Type="graph.teamworkOnlineMeetingInfo" />
         <Property Name="tenantId" Type="Edm.String" />
diff --git a/schemas/v1.0-Fairfax.csdl b/schemas/v1.0-Fairfax.csdl
index 95808c8e3..8878a67c2 100644
--- a/schemas/v1.0-Fairfax.csdl
+++ b/schemas/v1.0-Fairfax.csdl
@@ -9078,6 +9078,7 @@
       <EntityType Name="chat" BaseType="graph.entity">
         <Property Name="chatType" Type="graph.chatType" Nullable="false" />
         <Property Name="createdDateTime" Type="Edm.DateTimeOffset" />
+        <Property Name="isHiddenForAllMembers" Type="Edm.Boolean" />
         <Property Name="lastUpdatedDateTime" Type="Edm.DateTimeOffset" />
         <Property Name="onlineMeetingInfo" Type="graph.teamworkOnlineMeetingInfo" />
         <Property Name="tenantId" Type="Edm.String" />
diff --git a/schemas/v1.0-Mooncake.csdl b/schemas/v1.0-Mooncake.csdl
index 96e19fd92..0b2d8e13e 100644
--- a/schemas/v1.0-Mooncake.csdl
+++ b/schemas/v1.0-Mooncake.csdl
@@ -5841,6 +5841,7 @@
       <EntityType Name="chat" BaseType="graph.entity">
         <Property Name="chatType" Type="graph.chatType" Nullable="false" />
         <Property Name="createdDateTime" Type="Edm.DateTimeOffset" />
+        <Property Name="isHiddenForAllMembers" Type="Edm.Boolean" />
         <Property Name="lastUpdatedDateTime" Type="Edm.DateTimeOffset" />
         <Property Name="onlineMeetingInfo" Type="graph.teamworkOnlineMeetingInfo" />
         <Property Name="tenantId" Type="Edm.String" />
diff --git a/schemas/v1.0-Prod.csdl b/schemas/v1.0-Prod.csdl
index e749c8c28..f9dc07efc 100644
--- a/schemas/v1.0-Prod.csdl
+++ b/schemas/v1.0-Prod.csdl
@@ -11430,6 +11430,7 @@
       <EntityType Name="chat" BaseType="graph.entity">
         <Property Name="chatType" Type="graph.chatType" Nullable="false" />
         <Property Name="createdDateTime" Type="Edm.DateTimeOffset" />
+        <Property Name="isHiddenForAllMembers" Type="Edm.Boolean" />
         <Property Name="lastUpdatedDateTime" Type="Edm.DateTimeOffset" />
         <Property Name="onlineMeetingInfo" Type="graph.teamworkOnlineMeetingInfo" />
         <Property Name="tenantId" Type="Edm.String" />
diff --git a/schemas/v1.0-USNat.csdl b/schemas/v1.0-USNat.csdl
index 782b6d05d..7a5344b24 100644
--- a/schemas/v1.0-USNat.csdl
+++ b/schemas/v1.0-USNat.csdl
@@ -5436,6 +5436,7 @@
       <EntityType Name="chat" BaseType="graph.entity">
         <Property Name="chatType" Type="graph.chatType" Nullable="false" />
         <Property Name="createdDateTime" Type="Edm.DateTimeOffset" />
+        <Property Name="isHiddenForAllMembers" Type="Edm.Boolean" />
         <Property Name="lastUpdatedDateTime" Type="Edm.DateTimeOffset" />
         <Property Name="onlineMeetingInfo" Type="graph.teamworkOnlineMeetingInfo" />
         <Property Name="tenantId" Type="Edm.String" />
diff --git a/schemas/v1.0-USSec.csdl b/schemas/v1.0-USSec.csdl
index 08866b37b..526cdc2df 100644
--- a/schemas/v1.0-USSec.csdl
+++ b/schemas/v1.0-USSec.csdl
@@ -5158,6 +5158,7 @@
       <EntityType Name="chat" BaseType="graph.entity">
         <Property Name="chatType" Type="graph.chatType" Nullable="false" />
         <Property Name="createdDateTime" Type="Edm.DateTimeOffset" />
+        <Property Name="isHiddenForAllMembers" Type="Edm.Boolean" />
         <Property Name="lastUpdatedDateTime" Type="Edm.DateTimeOffset" />
         <Property Name="onlineMeetingInfo" Type="graph.teamworkOnlineMeetingInfo" />
         <Property Name="tenantId" Type="Edm.String" />