diff --git a/specification/managedservices/resource-manager/Microsoft.ManagedServices/preview/2020-02-01-preview/examples/GetRegistrationDefinition.json b/specification/managedservices/resource-manager/Microsoft.ManagedServices/preview/2020-02-01-preview/examples/GetRegistrationDefinition.json
index 065d892c01f7..6fd81d1fcc3b 100644
--- a/specification/managedservices/resource-manager/Microsoft.ManagedServices/preview/2020-02-01-preview/examples/GetRegistrationDefinition.json
+++ b/specification/managedservices/resource-manager/Microsoft.ManagedServices/preview/2020-02-01-preview/examples/GetRegistrationDefinition.json
@@ -44,6 +44,8 @@
             }
           ],
           "provisioningState": "Succeeded",
+          "manageeTenantId": "0e06d6a3-55ae-40a3-ac29-350808980808",
+          "manageeTenantName": "Test customer",
           "managedByTenantName": "Test Tenant"
         },
         "plan": {
diff --git a/specification/managedservices/resource-manager/Microsoft.ManagedServices/preview/2020-02-01-preview/examples/GetRegistrationDefinitions.json b/specification/managedservices/resource-manager/Microsoft.ManagedServices/preview/2020-02-01-preview/examples/GetRegistrationDefinitions.json
index d88e7509f99f..e57d8f7a77b7 100644
--- a/specification/managedservices/resource-manager/Microsoft.ManagedServices/preview/2020-02-01-preview/examples/GetRegistrationDefinitions.json
+++ b/specification/managedservices/resource-manager/Microsoft.ManagedServices/preview/2020-02-01-preview/examples/GetRegistrationDefinitions.json
@@ -45,6 +45,8 @@
                 }
               ],
               "provisioningState": "Succeeded",
+              "manageeTenantId": "0e06d6a3-55ae-40a3-ac29-350808980808",
+              "manageeTenantName": "Test customer",
               "managedByTenantName": "Test Tenant"
             },
             "plan": {
diff --git a/specification/managedservices/resource-manager/Microsoft.ManagedServices/preview/2020-02-01-preview/managedservices.json b/specification/managedservices/resource-manager/Microsoft.ManagedServices/preview/2020-02-01-preview/managedservices.json
index caaac95ed665..877402e94ebb 100644
--- a/specification/managedservices/resource-manager/Microsoft.ManagedServices/preview/2020-02-01-preview/managedservices.json
+++ b/specification/managedservices/resource-manager/Microsoft.ManagedServices/preview/2020-02-01-preview/managedservices.json
@@ -652,6 +652,16 @@
             "modelAsString": true
           }
         },
+        "manageeTenantId": {
+          "readOnly": true,
+          "type": "string",
+          "description": "The identifier of the managed tenant."
+        },
+        "manageeTenantName": {
+          "readOnly": true,
+          "type": "string",
+          "description": "The name of the managed tenant."
+        },
         "managedByTenantName": {
           "readOnly": true,
           "type": "string",