diff --git a/package-lock.json b/package-lock.json
index c112b7c88c93..a4a252ff48d3 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -3764,7 +3764,7 @@
       "requires": {
         "esprima": "1.2.2",
         "static-eval": "2.0.2",
-        "underscore": "^1.12.1"
+        "underscore": "1.7.0"
       },
       "dependencies": {
         "esprima": {
@@ -5957,6 +5957,7 @@
       "version": "3.12.1",
       "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.12.1.tgz",
       "integrity": "sha512-o8lHP20KjIiQe5b/67Rh68xEGRrc2SRsCuuoYclXXoC74AfSRGblU1HKzJWH3HxPZ+Ort85fWHpSX7KwBUC9CQ==",
+      "dev": true,
       "optional": true
     },
     "underscore": {
diff --git a/specification/monitor/resource-manager/Microsoft.Insights/preview/2021-02-01-preview/examples/createOrUpdateScheduledQueryRule.json b/specification/monitor/resource-manager/Microsoft.Insights/preview/2021-02-01-preview/examples/createOrUpdateScheduledQueryRule.json
index a5f4a76a85e9..4e52e254e432 100644
--- a/specification/monitor/resource-manager/Microsoft.Insights/preview/2021-02-01-preview/examples/createOrUpdateScheduledQueryRule.json
+++ b/specification/monitor/resource-manager/Microsoft.Insights/preview/2021-02-01-preview/examples/createOrUpdateScheduledQueryRule.json
@@ -48,15 +48,15 @@
           ]
         },
         "muteActionsDuration": "PT30M",
-        "actions": [
-          {
-            "actionGroupId": "/subscriptions/1cf177ed-1330-4692-80ea-fd3d7783b147/resourcegroups/sqrapi/providers/microsoft.insights/actiongroups/myactiongroup",
-            "webHookProperties": {
-              "key11": "value11",
-              "key12": "value12"
-            }
+        "actions": {
+          "actionGroups": [
+            "/subscriptions/1cf177ed-1330-4692-80ea-fd3d7783b147/resourcegroups/sqrapi/providers/microsoft.insights/actiongroups/myactiongroup"
+          ],
+          "customProperties": {
+            "key11": "value11",
+            "key12": "value12"
           }
-        ]
+        }
       }
     }
   },
@@ -111,15 +111,15 @@
             ]
           },
           "muteActionsDuration": "PT30M",
-          "actions": [
-            {
-              "actionGroupId": "/subscriptions/1cf177ed-1330-4692-80ea-fd3d7783b147/resourcegroups/sqrapi/providers/microsoft.insights/actiongroups/myactiongroup",
-              "webHookProperties": {
-                "key11": "value11",
-                "key12": "value12"
-              }
+          "actions": {
+            "actionGroups": [
+              "/subscriptions/1cf177ed-1330-4692-80ea-fd3d7783b147/resourcegroups/sqrapi/providers/microsoft.insights/actiongroups/myactiongroup"
+            ],
+            "customProperties": {
+              "key11": "value11",
+              "key12": "value12"
             }
-          ]
+          }
         }
       }
     },
@@ -173,15 +173,15 @@
             ]
           },
           "muteActionsDuration": "PT30M",
-          "actions": [
-            {
-              "actionGroupId": "/subscriptions/1cf177ed-1330-4692-80ea-fd3d7783b147/resourcegroups/sqrapi/providers/microsoft.insights/actiongroups/myactiongroup",
-              "webHookProperties": {
-                "key11": "value11",
-                "key12": "value12"
-              }
+          "actions": {
+            "actionGroups": [
+              "/subscriptions/1cf177ed-1330-4692-80ea-fd3d7783b147/resourcegroups/sqrapi/providers/microsoft.insights/actiongroups/myactiongroup"
+            ],
+            "customProperties": {
+              "key11": "value11",
+              "key12": "value12"
             }
-          ]
+          }
         }
       }
     }
diff --git a/specification/monitor/resource-manager/Microsoft.Insights/preview/2021-02-01-preview/examples/createOrUpdateScheduledQueryRuleResourceGroup.json b/specification/monitor/resource-manager/Microsoft.Insights/preview/2021-02-01-preview/examples/createOrUpdateScheduledQueryRuleResourceGroup.json
index 808247601259..dd34bbdebb64 100644
--- a/specification/monitor/resource-manager/Microsoft.Insights/preview/2021-02-01-preview/examples/createOrUpdateScheduledQueryRuleResourceGroup.json
+++ b/specification/monitor/resource-manager/Microsoft.Insights/preview/2021-02-01-preview/examples/createOrUpdateScheduledQueryRuleResourceGroup.json
@@ -34,15 +34,15 @@
           ]
         },
         "muteActionsDuration": "PT30M",
-        "actions": [
-          {
-            "actionGroupId": "/subscriptions/1cf177ed-1330-4692-80ea-fd3d7783b147/resourcegroups/sqrapi/providers/microsoft.insights/actiongroups/myactiongroup",
-            "webHookProperties": {
-              "key11": "value11",
-              "key12": "value12"
-            }
+        "actions": {
+          "actionGroups": [
+            "/subscriptions/1cf177ed-1330-4692-80ea-fd3d7783b147/resourcegroups/sqrapi/providers/microsoft.insights/actiongroups/myactiongroup"
+          ],
+          "customProperties": {
+            "key11": "value11",
+            "key12": "value12"
           }
-        ]
+        }
       }
     }
   },
@@ -83,15 +83,15 @@
             ]
           },
           "muteActionsDuration": "PT30M",
-          "actions": [
-            {
-              "actionGroupId": "/subscriptions/1cf177ed-1330-4692-80ea-fd3d7783b147/resourcegroups/sqrapi/providers/microsoft.insights/actiongroups/myactiongroup",
-              "webHookProperties": {
-                "key11": "value11",
-                "key12": "value12"
-              }
+          "actions": {
+            "actionGroups": [
+              "/subscriptions/1cf177ed-1330-4692-80ea-fd3d7783b147/resourcegroups/sqrapi/providers/microsoft.insights/actiongroups/myactiongroup"
+            ],
+            "customProperties": {
+              "key11": "value11",
+              "key12": "value12"
             }
-          ]
+          }
         }
       }
     },
@@ -131,15 +131,15 @@
             ]
           },
           "muteActionsDuration": "PT30M",
-          "actions": [
-            {
-              "actionGroupId": "/subscriptions/1cf177ed-1330-4692-80ea-fd3d7783b147/resourcegroups/sqrapi/providers/microsoft.insights/actiongroups/myactiongroup",
-              "webHookProperties": {
-                "key11": "value11",
-                "key12": "value12"
-              }
+          "actions": {
+            "actionGroups": [
+              "/subscriptions/1cf177ed-1330-4692-80ea-fd3d7783b147/resourcegroups/sqrapi/providers/microsoft.insights/actiongroups/myactiongroup"
+            ],
+            "customProperties": {
+              "key11": "value11",
+              "key12": "value12"
             }
-          ]
+          }
         }
       }
     }
diff --git a/specification/monitor/resource-manager/Microsoft.Insights/preview/2021-02-01-preview/examples/createOrUpdateScheduledQueryRuleSubscription.json b/specification/monitor/resource-manager/Microsoft.Insights/preview/2021-02-01-preview/examples/createOrUpdateScheduledQueryRuleSubscription.json
index bd3bfab4d0d7..4c4e90962745 100644
--- a/specification/monitor/resource-manager/Microsoft.Insights/preview/2021-02-01-preview/examples/createOrUpdateScheduledQueryRuleSubscription.json
+++ b/specification/monitor/resource-manager/Microsoft.Insights/preview/2021-02-01-preview/examples/createOrUpdateScheduledQueryRuleSubscription.json
@@ -51,15 +51,15 @@
           ]
         },
         "muteActionsDuration": "PT30M",
-        "actions": [
-          {
-            "actionGroupId": "/subscriptions/1cf177ed-1330-4692-80ea-fd3d7783b147/resourcegroups/sqrapi/providers/microsoft.insights/actiongroups/myactiongroup",
-            "webHookProperties": {
-              "key11": "value11",
-              "key12": "value12"
-            }
+        "actions": {
+          "actionGroups": [
+            "/subscriptions/1cf177ed-1330-4692-80ea-fd3d7783b147/resourcegroups/sqrapi/providers/microsoft.insights/actiongroups/myactiongroup"
+          ],
+          "customProperties": {
+            "key11": "value11",
+            "key12": "value12"
           }
-        ]
+        }
       }
     }
   },
@@ -117,15 +117,15 @@
             ]
           },
           "muteActionsDuration": "PT30M",
-          "actions": [
-            {
-              "actionGroupId": "/subscriptions/1cf177ed-1330-4692-80ea-fd3d7783b147/resourcegroups/sqrapi/providers/microsoft.insights/actiongroups/myactiongroup",
-              "webHookProperties": {
-                "key11": "value11",
-                "key12": "value12"
-              }
+          "actions": {
+            "actionGroups": [
+              "/subscriptions/1cf177ed-1330-4692-80ea-fd3d7783b147/resourcegroups/sqrapi/providers/microsoft.insights/actiongroups/myactiongroup"
+            ],
+            "customProperties": {
+              "key11": "value11",
+              "key12": "value12"
             }
-          ]
+          }
         }
       }
     },
@@ -182,15 +182,15 @@
             ]
           },
           "muteActionsDuration": "PT30M",
-          "actions": [
-            {
-              "actionGroupId": "/subscriptions/1cf177ed-1330-4692-80ea-fd3d7783b147/resourcegroups/sqrapi/providers/microsoft.insights/actiongroups/myactiongroup",
-              "webHookProperties": {
-                "key11": "value11",
-                "key12": "value12"
-              }
+          "actions": {
+            "actionGroups": [
+              "/subscriptions/1cf177ed-1330-4692-80ea-fd3d7783b147/resourcegroups/sqrapi/providers/microsoft.insights/actiongroups/myactiongroup"
+            ],
+            "customProperties": {
+              "key11": "value11",
+              "key12": "value12"
             }
-          ]
+          }
         }
       }
     }
diff --git a/specification/monitor/resource-manager/Microsoft.Insights/preview/2021-02-01-preview/examples/getScheduledQueryRule.json b/specification/monitor/resource-manager/Microsoft.Insights/preview/2021-02-01-preview/examples/getScheduledQueryRule.json
index 01d24ea4ae94..c5785d29624b 100644
--- a/specification/monitor/resource-manager/Microsoft.Insights/preview/2021-02-01-preview/examples/getScheduledQueryRule.json
+++ b/specification/monitor/resource-manager/Microsoft.Insights/preview/2021-02-01-preview/examples/getScheduledQueryRule.json
@@ -56,15 +56,15 @@
             ]
           },
           "muteActionsDuration": "PT30M",
-          "actions": [
-            {
-              "actionGroupId": "/subscriptions/1cf177ed-1330-4692-80ea-fd3d7783b147/resourcegroups/sqrapi/providers/microsoft.insights/actiongroups/myactiongroup",
-              "webHookProperties": {
-                "key11": "value11",
-                "key12": "value12"
-              }
+          "actions": {
+            "actionGroups": [
+              "/subscriptions/1cf177ed-1330-4692-80ea-fd3d7783b147/resourcegroups/sqrapi/providers/microsoft.insights/actiongroups/myactiongroup"
+            ],
+            "customProperties": {
+              "key11": "value11",
+              "key12": "value12"
             }
-          ]
+          }
         }
       }
     }
diff --git a/specification/monitor/resource-manager/Microsoft.Insights/preview/2021-02-01-preview/examples/listScheduledQueryRulesByResourceGroup.json b/specification/monitor/resource-manager/Microsoft.Insights/preview/2021-02-01-preview/examples/listScheduledQueryRulesByResourceGroup.json
index 03b6e2d84f36..32c65a82c215 100644
--- a/specification/monitor/resource-manager/Microsoft.Insights/preview/2021-02-01-preview/examples/listScheduledQueryRulesByResourceGroup.json
+++ b/specification/monitor/resource-manager/Microsoft.Insights/preview/2021-02-01-preview/examples/listScheduledQueryRulesByResourceGroup.json
@@ -60,15 +60,15 @@
                 ]
               },
               "muteActionsDuration": "PT30M",
-              "actions": [
-                {
-                  "actionGroupId": "/subscriptions/1cf177ed-1330-4692-80ea-fd3d7783b147/resourcegroups/sqrapi/providers/microsoft.insights/actiongroups/myactiongroup",
-                  "webHookProperties": {
-                    "key11": "value11",
-                    "key12": "value12"
-                  }
+              "actions": {
+                "actionGroups": [
+                  "/subscriptions/1cf177ed-1330-4692-80ea-fd3d7783b147/resourcegroups/sqrapi/providers/microsoft.insights/actiongroups/myactiongroup"
+                ],
+                "customProperties": {
+                  "key11": "value11",
+                  "key12": "value12"
                 }
-              ]
+              }
             }
           },
           {
@@ -105,15 +105,15 @@
                 ]
               },
               "muteActionsDuration": "PT30M",
-              "actions": [
-                {
-                  "actionGroupId": "/subscriptions/1cf177ed-1330-4692-80ea-fd3d7783b147/resourcegroups/sqrapi/providers/microsoft.insights/actiongroups/myactiongroup",
-                  "webHookProperties": {
-                    "key11": "value11",
-                    "key12": "value12"
-                  }
+              "actions": {
+                "actionGroups": [
+                  "/subscriptions/1cf177ed-1330-4692-80ea-fd3d7783b147/resourcegroups/sqrapi/providers/microsoft.insights/actiongroups/myactiongroup"
+                ],
+                "customProperties": {
+                  "key11": "value11",
+                  "key12": "value12"
                 }
-              ]
+              }
             }
           }
         ]
diff --git a/specification/monitor/resource-manager/Microsoft.Insights/preview/2021-02-01-preview/examples/listScheduledQueryRulesBySubscription.json b/specification/monitor/resource-manager/Microsoft.Insights/preview/2021-02-01-preview/examples/listScheduledQueryRulesBySubscription.json
index 16dacf228515..6e08765816d7 100644
--- a/specification/monitor/resource-manager/Microsoft.Insights/preview/2021-02-01-preview/examples/listScheduledQueryRulesBySubscription.json
+++ b/specification/monitor/resource-manager/Microsoft.Insights/preview/2021-02-01-preview/examples/listScheduledQueryRulesBySubscription.json
@@ -59,15 +59,15 @@
                 ]
               },
               "muteActionsDuration": "PT30M",
-              "actions": [
-                {
-                  "actionGroupId": "/subscriptions/1cf177ed-1330-4692-80ea-fd3d7783b147/resourcegroups/sqrapi/providers/microsoft.insights/actiongroups/myactiongroup",
-                  "webHookProperties": {
-                    "key11": "value11",
-                    "key12": "value12"
-                  }
+              "actions": {
+                "actionGroups": [
+                  "/subscriptions/1cf177ed-1330-4692-80ea-fd3d7783b147/resourcegroups/sqrapi/providers/microsoft.insights/actiongroups/myactiongroup"
+                ],
+                "customProperties": {
+                  "key11": "value11",
+                  "key12": "value12"
                 }
-              ]
+              }
             }
           },
           {
@@ -104,15 +104,15 @@
                 ]
               },
               "muteActionsDuration": "PT30M",
-              "actions": [
-                {
-                  "actionGroupId": "/subscriptions/1cf177ed-1330-4692-80ea-fd3d7783b147/resourcegroups/sqrapi/providers/microsoft.insights/actiongroups/myactiongroup",
-                  "webHookProperties": {
-                    "key11": "value11",
-                    "key12": "value12"
-                  }
+              "actions": {
+                "actionGroups": [
+                  "/subscriptions/1cf177ed-1330-4692-80ea-fd3d7783b147/resourcegroups/sqrapi/providers/microsoft.insights/actiongroups/myactiongroup"
+                ],
+                "customProperties": {
+                  "key11": "value11",
+                  "key12": "value12"
                 }
-              ]
+              }
             }
           }
         ]
diff --git a/specification/monitor/resource-manager/Microsoft.Insights/preview/2021-02-01-preview/examples/patchScheduledQueryRule.json b/specification/monitor/resource-manager/Microsoft.Insights/preview/2021-02-01-preview/examples/patchScheduledQueryRule.json
index 8d7dd8d59bb8..bdc7b71cec97 100644
--- a/specification/monitor/resource-manager/Microsoft.Insights/preview/2021-02-01-preview/examples/patchScheduledQueryRule.json
+++ b/specification/monitor/resource-manager/Microsoft.Insights/preview/2021-02-01-preview/examples/patchScheduledQueryRule.json
@@ -47,15 +47,15 @@
             ]
           },
           "muteActionsDuration": "PT30M",
-          "actions": [
-            {
-              "actionGroupId": "/subscriptions/1cf177ed-1330-4692-80ea-fd3d7783b147/resourcegroups/sqrapi/providers/microsoft.insights/actiongroups/myactiongroup",
-              "webHookProperties": {
-                "key11": "value11",
-                "key12": "value12"
-              }
+          "actions": {
+            "actionGroups": [
+              "/subscriptions/1cf177ed-1330-4692-80ea-fd3d7783b147/resourcegroups/sqrapi/providers/microsoft.insights/actiongroups/myactiongroup"
+            ],
+            "customProperties": {
+              "key11": "value11",
+              "key12": "value12"
             }
-          ]
+          }
         }
       }
     }
diff --git a/specification/monitor/resource-manager/Microsoft.Insights/preview/2021-02-01-preview/scheduledQueryRule_API.json b/specification/monitor/resource-manager/Microsoft.Insights/preview/2021-02-01-preview/scheduledQueryRule_API.json
index c10fe1c4a857..d6e5846da71a 100644
--- a/specification/monitor/resource-manager/Microsoft.Insights/preview/2021-02-01-preview/scheduledQueryRule_API.json
+++ b/specification/monitor/resource-manager/Microsoft.Insights/preview/2021-02-01-preview/scheduledQueryRule_API.json
@@ -309,21 +309,24 @@
     }
   },
   "definitions": {
-    "Action": {
+    "Actions": {
       "type": "object",
       "description": "Actions to invoke when the alert fires.",
       "properties": {
-        "actionGroupId": {
-          "type": "string",
-          "description": "Action Group resource Id to invoke when the alert fires."
+        "actionGroups": {
+          "type": "array",
+          "items": {
+            "type": "string"
+          },
+          "description": "Action Group resource Ids to invoke when the alert fires."
         },
-        "webHookProperties": {
+        "customProperties": {
           "type": "object",
           "additionalProperties": {
             "type": "string",
-            "description": "The dictionary of custom properties to include with the post operation. These data are appended to the webhook payload."
+            "description": "The dictionary of custom properties to include with the post operation. These data are appended to the alert payload."
           },
-          "description": "The properties of a webhook object."
+          "description": "The properties of an alert payload."
         }
       }
     },
@@ -405,9 +408,9 @@
           "description": "Mute actions for the chosen period of time (in ISO 8601 duration format) after the alert is fired. Relevant only for rules of the kind LogAlert."
         },
         "actions": {
-          "type": "array",
+          "type": "object",
           "items": {
-            "$ref": "#/definitions/Action"
+            "$ref": "#/definitions/Actions"
           },
           "description": "Actions to invoke when the alert fires."
         },