diff --git a/specification/workloads/resource-manager/Microsoft.Workloads/preview/2021-12-01-preview/commonTypes.json b/specification/workloads/resource-manager/Microsoft.Workloads/preview/2021-12-01-preview/commonTypes.json
new file mode 100644
index 000000000000..48d9bb62e095
--- /dev/null
+++ b/specification/workloads/resource-manager/Microsoft.Workloads/preview/2021-12-01-preview/commonTypes.json
@@ -0,0 +1,41 @@
+{
+  "swagger": "2.0",
+  "info": {
+    "version": "2021-12-01-preview",
+    "title": "Workloads Client",
+    "description": "Workloads client provides access to various workload operations"
+  },
+  "paths": {},
+  "definitions": {
+    "ManagedServiceIdentityType": {
+      "description": "Type of managed service identity (only None, UserAssigned types are allowed).",
+      "enum": [
+        "None",
+        "UserAssigned"
+      ],
+      "type": "string",
+      "x-ms-enum": {
+        "name": "ManagedServiceIdentityType",
+        "modelAsString": true
+      }
+    },
+    "UserAssignedServiceIdentity": {
+      "description": "Managed service identity (user assigned identities)",
+      "type": "object",
+      "properties": {
+        "type": {
+          "description": "Type of manage identity",
+          "$ref": "#/definitions/ManagedServiceIdentityType"
+        },
+        "userAssignedIdentities": {
+          "description": "User assigned identities dictionary",
+          "$ref": "../../../../../common-types/resource-management/v3/managedidentity.json#/definitions/UserAssignedIdentities"
+        }
+      },
+      "required": [
+        "type"
+      ]
+    }
+  },
+  "parameters": {}
+}
diff --git a/specification/workloads/resource-manager/Microsoft.Workloads/preview/2021-12-01-preview/examples/workloadmonitor/monitors_PatchTags.json b/specification/workloads/resource-manager/Microsoft.Workloads/preview/2021-12-01-preview/examples/workloadmonitor/monitors_PatchTags.json
index 54aef7c4b83c..a7524bc7bc6f 100644
--- a/specification/workloads/resource-manager/Microsoft.Workloads/preview/2021-12-01-preview/examples/workloadmonitor/monitors_PatchTags.json
+++ b/specification/workloads/resource-manager/Microsoft.Workloads/preview/2021-12-01-preview/examples/workloadmonitor/monitors_PatchTags.json
@@ -4,9 +4,12 @@
     "subscriptionId": "00000000-0000-0000-0000-000000000000",
     "resourceGroupName": "myResourceGroup",
     "monitorName": "mySapMonitor",
-    "tagsParameter": {
+    "body": {
       "tags": {
         "testkey": "testvalue"
+      },
+      "identity": {
+        "type": "None"
       }
     }
   },
@@ -28,6 +31,9 @@
           "lastModifiedByType": "User",
           "lastModifiedAt": "2021-08-19T15:10:46.196Z"
         },
+        "identity": {
+          "type": "None"
+        },
         "properties": {
           "provisioningState": "Succeeded",
           "errors": [
diff --git a/specification/workloads/resource-manager/Microsoft.Workloads/preview/2021-12-01-preview/examples/workloadmonitor/monitors_PatchTags_Delete.json b/specification/workloads/resource-manager/Microsoft.Workloads/preview/2021-12-01-preview/examples/workloadmonitor/monitors_PatchTags_Delete.json
index aee9dec3eeaa..86b0436721cc 100644
--- a/specification/workloads/resource-manager/Microsoft.Workloads/preview/2021-12-01-preview/examples/workloadmonitor/monitors_PatchTags_Delete.json
+++ b/specification/workloads/resource-manager/Microsoft.Workloads/preview/2021-12-01-preview/examples/workloadmonitor/monitors_PatchTags_Delete.json
@@ -4,8 +4,11 @@
     "subscriptionId": "00000000-0000-0000-0000-000000000000",
     "resourceGroupName": "myResourceGroup",
     "monitorName": "mySapMonitor",
-    "tagsParameter": {
-      "tags": {}
+    "body": {
+      "tags": {},
+      "identity": {
+        "type": "None"
+      }
     }
   },
   "responses": {
@@ -26,6 +29,9 @@
           "lastModifiedByType": "User",
           "lastModifiedAt": "2021-08-19T15:10:46.196Z"
         },
+        "identity": {
+          "type": "None"
+        },
         "properties": {
           "provisioningState": "Succeeded",
           "errors": [
diff --git a/specification/workloads/resource-manager/Microsoft.Workloads/preview/2021-12-01-preview/monitors.json b/specification/workloads/resource-manager/Microsoft.Workloads/preview/2021-12-01-preview/monitors.json
index 3b0d64f93dd9..83e0f622c579 100644
--- a/specification/workloads/resource-manager/Microsoft.Workloads/preview/2021-12-01-preview/monitors.json
+++ b/specification/workloads/resource-manager/Microsoft.Workloads/preview/2021-12-01-preview/monitors.json
@@ -286,7 +286,13 @@
             "$ref": "#/parameters/monitorNameParameter"
           },
           {
-            "$ref": "#/parameters/TagsParameter"
+            "in": "body",
+            "name": "body",
+            "required": true,
+            "description": "The Update SAP workload monitor request body.",
+            "schema": {
+              "$ref": "#/definitions/UpdateMonitorRequest"
+            }
           }
         ],
         "responses": {
@@ -744,6 +750,9 @@
     "Monitor": {
       "type": "object",
       "properties": {
+        "identity": {
+          "$ref": "./commonTypes.json#/definitions/UserAssignedServiceIdentity"
+        },
         "properties": {
           "x-ms-client-flatten": true,
           "$ref": "#/definitions/MonitorProperties",
@@ -823,6 +832,22 @@
       },
       "description": "Describes the properties of a SAP monitor."
     },
+    "UpdateMonitorRequest": {
+      "description": "Defines the request body for updating SAP monitor resource.",
+      "type": "object",
+      "properties": {
+        "tags": {
+          "description": "Gets or sets the Resource tags.",
+          "type": "object",
+          "additionalProperties": {
+            "type": "string"
+          }
+        },
+        "identity": {
+          "$ref": "./commonTypes.json#/definitions/UserAssignedServiceIdentity"
+        }
+      }
+    },
     "ProviderInstanceListResult": {
       "type": "object",
       "properties": {
@@ -843,6 +868,9 @@
     "ProviderInstance": {
       "type": "object",
       "properties": {
+        "identity": {
+          "$ref": "./commonTypes.json#/definitions/UserAssignedServiceIdentity"
+        },
         "properties": {
           "x-ms-client-flatten": true,
           "$ref": "#/definitions/ProviderInstanceProperties",
@@ -1156,16 +1184,6 @@
       "description": "Name of the provider instance.",
       "x-ms-parameter-location": "method"
     },
-    "TagsParameter": {
-      "name": "tagsParameter",
-      "in": "body",
-      "required": true,
-      "schema": {
-        "$ref": "#/definitions/Tags"
-      },
-      "description": "Request body that only contains the new Tags field",
-      "x-ms-parameter-location": "method"
-    },
     "MonitorParameter": {
       "name": "MonitorParameter",
       "in": "body",