diff --git a/specification/iotsecurity/resource-manager/Microsoft.IoTSecurity/preview/2021-02-01-preview/defenderSettings.json b/specification/iotsecurity/resource-manager/Microsoft.IoTSecurity/preview/2021-02-01-preview/defenderSettings.json
index 44c03aeed500..e74810e5f41c 100644
--- a/specification/iotsecurity/resource-manager/Microsoft.IoTSecurity/preview/2021-02-01-preview/defenderSettings.json
+++ b/specification/iotsecurity/resource-manager/Microsoft.IoTSecurity/preview/2021-02-01-preview/defenderSettings.json
@@ -312,13 +312,21 @@
           "type": "string",
           "enum": [
             "Default",
-            "MigratedToAzure"
+            "MigratedToAzure",
+            "Evaluation",
+            "Purchased"
           ],
           "description": "The kind of onboarding for the subscription",
           "x-ms-enum": {
             "name": "OnboardingKind",
             "modelAsString": true
           }
+        },
+        "evaluationEndTime": {
+          "type": "string",
+          "format": "date-time",
+          "description": "End time of the evaluation period, if such exist",
+          "readOnly": true
         }
       },
       "required": [
diff --git a/specification/iotsecurity/resource-manager/Microsoft.IoTSecurity/preview/2021-02-01-preview/examples/DefenderSettings/Get.json b/specification/iotsecurity/resource-manager/Microsoft.IoTSecurity/preview/2021-02-01-preview/examples/DefenderSettings/Get.json
index 1ba4a1396f7c..82bd85a5d93d 100644
--- a/specification/iotsecurity/resource-manager/Microsoft.IoTSecurity/preview/2021-02-01-preview/examples/DefenderSettings/Get.json
+++ b/specification/iotsecurity/resource-manager/Microsoft.IoTSecurity/preview/2021-02-01-preview/examples/DefenderSettings/Get.json
@@ -14,7 +14,8 @@
           "sentinelWorkspaceResourceIds": [
             "/subscriptions/c4930e90-cd72-4aa5-93e9-2d081d129569/resourceGroups/myRg/providers/Microsoft.OperationalInsights/workspaces/myWorkspace1"
           ],
-          "onboardingKind": "Default"
+          "onboardingKind": "Evaluation",
+          "evaluationEndTime": "2021-06-29T00:00:00.0000000Z"
         }
       }
     }
diff --git a/specification/security/resource-manager/Microsoft.Security/preview/2020-08-06-preview/examples/IotDefenderSettings/Get.json b/specification/security/resource-manager/Microsoft.Security/preview/2020-08-06-preview/examples/IotDefenderSettings/Get.json
index 792a0cade892..a2c048ddca11 100644
--- a/specification/security/resource-manager/Microsoft.Security/preview/2020-08-06-preview/examples/IotDefenderSettings/Get.json
+++ b/specification/security/resource-manager/Microsoft.Security/preview/2020-08-06-preview/examples/IotDefenderSettings/Get.json
@@ -14,7 +14,8 @@
           "sentinelWorkspaceResourceIds": [
             "/subscriptions/c4930e90-cd72-4aa5-93e9-2d081d129569/resourceGroups/myRg/providers/Microsoft.OperationalInsights/workspaces/myWorkspace1"
           ],
-          "onboardingKind": "Default"
+          "onboardingKind": "Evaluation",
+          "evaluationEndTime": "2021-06-29T00:00:00.0000000Z"
         }
       }
     }
diff --git a/specification/security/resource-manager/Microsoft.Security/preview/2020-08-06-preview/iotDefenderSettings.json b/specification/security/resource-manager/Microsoft.Security/preview/2020-08-06-preview/iotDefenderSettings.json
index f0013fcc8cff..ae50e311f50a 100644
--- a/specification/security/resource-manager/Microsoft.Security/preview/2020-08-06-preview/iotDefenderSettings.json
+++ b/specification/security/resource-manager/Microsoft.Security/preview/2020-08-06-preview/iotDefenderSettings.json
@@ -312,13 +312,21 @@
           "type": "string",
           "enum": [
             "Default",
-            "MigratedToAzure"
+            "MigratedToAzure",
+            "Evaluation",
+            "Purchased"
           ],
           "description": "The kind of onboarding for the subscription",
           "x-ms-enum": {
             "name": "OnboardingKind",
             "modelAsString": true
           }
+        },
+        "evaluationEndTime": {
+          "type": "string",
+          "format": "date-time",
+          "description": "End time of the evaluation period, if such exist",
+          "readOnly": true
         }
       },
       "required": [