diff --git a/specification/alertsmanagement/resource-manager/Microsoft.AlertsManagement/preview/2021-01-01-preview/AlertsManagement.json b/specification/alertsmanagement/resource-manager/Microsoft.AlertsManagement/preview/2021-01-01-preview/AlertsManagement.json
new file mode 100644
index 000000000000..3177163fb8b8
--- /dev/null
+++ b/specification/alertsmanagement/resource-manager/Microsoft.AlertsManagement/preview/2021-01-01-preview/AlertsManagement.json
@@ -0,0 +1,117 @@
+{
+  "swagger": "2.0",
+  "info": {
+    "version": "2021-01-01-preview",
+    "title": "Azure Alerts Management Service Resource Provider",
+    "description": "Azure Alerts Management Service provides a single pane of glass of alerts across Azure Monitor."
+  },
+  "host": "management.azure.com",
+  "schemes": [
+    "https"
+  ],
+  "consumes": [
+    "application/json"
+  ],
+  "produces": [
+    "application/json"
+  ],
+  "securityDefinitions": {
+    "azure_auth": {
+      "type": "oauth2",
+      "authorizationUrl": "https://login.microsoftonline.com/common/oauth2/authorize",
+      "flow": "implicit",
+      "description": "Azure Active Directory OAuth2 Flow",
+      "scopes": {
+        "user_impersonation": "impersonate your user account"
+      }
+    }
+  },
+  "paths": {
+    "/providers/Microsoft.AlertsManagement/operations": {
+      "get": {
+        "operationId": "Operations_List",
+        "description": "List all operations available through Azure Alerts Management Resource Provider.",
+        "parameters": [
+          {
+            "$ref": "#/parameters/ApiVersionParameter"
+          }
+        ],
+        "produces": [
+          "application/json"
+        ],
+        "responses": {
+          "200": {
+            "description": "OK. Successfully retrieved operations list.",
+            "schema": {
+              "$ref": "#/definitions/operationsList"
+            }
+          }
+        },
+        "x-ms-pageable": {
+          "nextLinkName": "nextLink"
+        }
+      }
+    }
+  },
+  "definitions": {
+    "operation": {
+      "description": "Operation provided by provider",
+      "properties": {
+        "name": {
+          "type": "string",
+          "description": "Name of the operation"
+        },
+        "display": {
+          "type": "object",
+          "description": "Properties of the operation",
+          "properties": {
+            "provider": {
+              "type": "string",
+              "description": "Provider name"
+            },
+            "resource": {
+              "type": "string",
+              "description": "Resource name"
+            },
+            "operation": {
+              "type": "string",
+              "description": "Operation name"
+            },
+            "description": {
+              "type": "string",
+              "description": "Description of the operation"
+            }
+          }
+        }
+      }
+    },
+    "operationsList": {
+      "description": "Lists the operations available in the AlertsManagement RP.",
+      "properties": {
+        "nextLink": {
+          "description": "URL to fetch the next set of operations.",
+          "type": "string"
+        },
+        "value": {
+          "description": "Array of operations",
+          "type": "array",
+          "items": {
+            "$ref": "#/definitions/operation"
+          }
+        }
+      },
+      "required": [
+        "value"
+      ]
+    }
+  },
+  "parameters": {
+    "ApiVersionParameter": {
+      "name": "api-version",
+      "in": "query",
+      "required": true,
+      "type": "string",
+      "description": "Client Api Version."
+    }
+  }
+}
diff --git a/specification/alertsmanagement/resource-manager/Microsoft.AlertsManagement/preview/2021-01-01-preview/MigrateFromSmartDetections.json b/specification/alertsmanagement/resource-manager/Microsoft.AlertsManagement/preview/2021-01-01-preview/MigrateFromSmartDetections.json
new file mode 100644
index 000000000000..610132bda121
--- /dev/null
+++ b/specification/alertsmanagement/resource-manager/Microsoft.AlertsManagement/preview/2021-01-01-preview/MigrateFromSmartDetections.json
@@ -0,0 +1,273 @@
+{
+  "swagger": "2.0",
+  "info": {
+    "version": "2021-01-01-preview",
+    "title": "Azure Alerts Management Service Resource Provider",
+    "description": "APIs for managing a migration from Smart Detection to smart alerts."
+  },
+  "host": "management.azure.com",
+  "schemes": [
+    "https"
+  ],
+  "consumes": [
+    "application/json"
+  ],
+  "produces": [
+    "application/json"
+  ],
+  "securityDefinitions": {
+    "azure_auth": {
+      "type": "oauth2",
+      "authorizationUrl": "https://login.microsoftonline.com/common/oauth2/authorize",
+      "flow": "implicit",
+      "description": "Azure Active Directory OAuth2 Flow",
+      "scopes": {
+        "user_impersonation": "impersonate your user account"
+      }
+    }
+  },
+  "paths": {
+    "/subscriptions/{subscriptionId}/providers/Microsoft.AlertsManagement/migrateFromSmartDetection": {
+      "post": {
+        "tags": [
+          "MigrateFromSmartDetection"
+        ],
+        "description": "Starts an asynchronous migration process of Smart Detection to smart alerts in an Application Insights resource.",
+        "operationId": "MigrateFromSmartDetection_StartMigration",
+        "parameters": [
+          {
+            "$ref": "#/parameters/SubscriptionIdParameter"
+          },
+          {
+            "$ref": "#/parameters/ApiVersionParameter"
+          },
+          {
+            "name": "parameters",
+            "in": "body",
+            "required": true,
+            "schema": {
+              "$ref": "#/definitions/SmartDetectionMigrationRequest"
+            },
+            "description": "The parameters controlling the migration process."
+          }
+        ],
+        "responses": {
+          "202": {
+            "description": "Migration request was accepted. Processing will start promptly.",
+            "schema": {
+              "$ref": "#/definitions/MigrationStatusResponse"
+            }
+          },
+          "default": {
+            "description": "Error response describing why the operation failed.",
+            "schema": {
+              "$ref": "#/definitions/MigrationErrorResponse"
+            }
+          }
+        },
+        "x-ms-examples": {
+          "Migration Triggering": {
+            "$ref": "./examples/migrateFromSmartDetectionStartMigration.json"
+          }
+        }
+      }
+    },
+    "/subscriptions/{subscriptionId}/providers/Microsoft.AlertsManagement/migrateFromSmartDetection/{migrationId}": {
+      "get": {
+        "tags": [
+          "MigrateFromSmartDetection"
+        ],
+        "description": "Retrieve the status of a migration process.",
+        "operationId": "MigrateFromSmartDetection_Get",
+        "parameters": [
+          {
+            "$ref": "#/parameters/SubscriptionIdParameter"
+          },
+          {
+            "$ref": "#/parameters/MigrationIdParameter"
+          },
+          {
+            "$ref": "#/parameters/ApiVersionParameter"
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "OK",
+            "schema": {
+              "$ref": "#/definitions/MigrationStatusResponse"
+            }
+          },
+          "default": {
+            "description": "Error response describing why the operation failed.",
+            "schema": {
+              "$ref": "#/definitions/MigrationErrorResponse"
+            }
+          }
+        },
+        "x-ms-examples": {
+          "Get Migration Status": {
+            "$ref": "./examples/migrateFromSmartDetectionGet.json"
+          }
+        }
+      }
+    }
+  },
+  "definitions": {
+    "SmartDetectionMigrationRequest": {
+      "required": [
+        "scope"
+      ],
+      "properties": {
+        "scope": {
+          "type": "array",
+          "items": {
+            "type": "string"
+          },
+          "description": "The list of resource IDs that the requested migration should be performed on."
+        },
+        "actionGroupCreationPolicy": {
+          "type": "string",
+          "enum": [
+            "Custom",
+            "Auto"
+          ],
+          "x-ms-enum": {
+            "name": "ActionGroupCreationPolicy",
+            "values": [
+              {
+                "value": "Custom",
+                "description": "Create all alert rules with a custom action group that is specified in 'customActionGroupName'."
+              },
+              {
+                "value": "Auto",
+                "description": "Automatically create an action group for each unique setting in the Smart Detection settings."
+              }
+            ],
+            "modelAsString": true
+          },
+          "description": "The policy for migrating the email settings in the Smart Detection Rules into action groups. If not specified, 'Auto' policy is used."
+        },
+        "customActionGroupName": {
+          "type": "string",
+          "description": "A custom name of an existing action group to attach to the created alert rules. Required only when actionGroupCreationPolicy is set to 'Custom'."
+        }
+      },
+      "description": "The Smart Detection migration request."
+    },
+    "MigrationStatusResponse": {
+      "required": [
+        "id",
+        "status",
+        "scope"
+      ],
+      "properties": {
+        "id": {
+          "type": "string",
+          "description": "The migration process unique id."
+        },
+        "status": {
+          "type": "string",
+          "enum": [
+            "Starting",
+            "InProcess",
+            "Deploying",
+            "Completed",
+            "Failed",
+            "Canceled"
+          ],
+          "x-ms-enum": {
+            "name": "MigrationStatus",
+            "values": [
+              {
+                "value": "Starting",
+                "description": "The migration was accepted and will start shortly."
+              },
+              {
+                "value": "InProcess",
+                "description": "The migration is in progress."
+              },
+              {
+                "value": "Deploying",
+                "description": "The migration template is deploying."
+              },
+              {
+                "value": "Completed",
+                "description": "The migration completed successfully."
+              },
+              {
+                "value": "Failed",
+                "description": "The migration failed."
+              },
+              {
+                "value": "Canceled",
+                "description": "The migration was canceled by the user."
+              }
+            ],
+            "modelAsString": true
+          },
+          "description": "The current status of the migration process"
+        },
+        "scope": {
+          "type": "array",
+          "items": {
+            "type": "string"
+          },
+          "description": "The list of resource IDs that the requested migration should be performed on."
+        },
+        "armDeploymentName": {
+          "type": "string",
+          "description": "The name of the ARM deployment associated with the migration process."
+        }
+      },
+      "description": "A migration status response."
+    },
+    "MigrationErrorResponse": {
+      "description": "API error.",
+      "type": "object",
+      "properties": {
+        "error": {
+          "$ref": "#/definitions/MigrationErrorResponseBody",
+          "description": "The API error body."
+        }
+      }
+    },
+    "MigrationErrorResponseBody": {
+      "description": "API error body.",
+      "type": "object",
+      "properties": {
+        "code": {
+          "description": "Error code.",
+          "type": "string"
+        },
+        "message": {
+          "description": "Error message indicating why the operation failed.",
+          "type": "string"
+        }
+      }
+    }
+  },
+  "parameters": {
+    "SubscriptionIdParameter": {
+      "name": "subscriptionId",
+      "in": "path",
+      "required": true,
+      "type": "string",
+      "description": "The Azure subscription Id."
+    },
+    "ApiVersionParameter": {
+      "name": "api-version",
+      "in": "query",
+      "required": true,
+      "type": "string",
+      "description": "Client Api Version."
+    },
+    "MigrationIdParameter": {
+      "name": "migrationId",
+      "in": "path",
+      "required": true,
+      "type": "string",
+      "description": "The ID of the migration process.",
+      "x-ms-parameter-location": "method"
+    }
+  }
+}
diff --git a/specification/alertsmanagement/resource-manager/Microsoft.AlertsManagement/preview/2021-01-01-preview/examples/migrateFromSmartDetectionGet.json b/specification/alertsmanagement/resource-manager/Microsoft.AlertsManagement/preview/2021-01-01-preview/examples/migrateFromSmartDetectionGet.json
new file mode 100644
index 000000000000..de8e08ac4bfb
--- /dev/null
+++ b/specification/alertsmanagement/resource-manager/Microsoft.AlertsManagement/preview/2021-01-01-preview/examples/migrateFromSmartDetectionGet.json
@@ -0,0 +1,20 @@
+{
+  "parameters": {
+    "subscriptionId": "70afbb35-0463-4758-badf-d5aab5bce520",
+    "api-version": "2021-01-01-preview",
+    "migrationId": "ebf4f1bf-2f56-44b2-99b0-870867ae549b"
+  },
+  "responses": {
+    "200": {
+      "headers": {},
+      "body": {
+        "id": "ebf4f1bf-2f56-44b2-99b0-870867ae549b",
+        "status": "Completed",
+        "armDeploymentName": "Migration-From-Smart-Detections-Deployment-ebf4f1bf",
+        "scope": [
+          "/subscriptions/70afbb35-0463-4758-badf-d5aab5bce520/resourceGroups/MyRg/providers/microsoft.insights/components/myai"
+        ]
+      }
+    }
+  }
+}
diff --git a/specification/alertsmanagement/resource-manager/Microsoft.AlertsManagement/preview/2021-01-01-preview/examples/migrateFromSmartDetectionStartMigration.json b/specification/alertsmanagement/resource-manager/Microsoft.AlertsManagement/preview/2021-01-01-preview/examples/migrateFromSmartDetectionStartMigration.json
new file mode 100644
index 000000000000..ebc33153528d
--- /dev/null
+++ b/specification/alertsmanagement/resource-manager/Microsoft.AlertsManagement/preview/2021-01-01-preview/examples/migrateFromSmartDetectionStartMigration.json
@@ -0,0 +1,24 @@
+{
+  "parameters": {
+    "subscriptionId": "70afbb35-0463-4758-badf-d5aab5bce520",
+    "api-version": "2021-01-01-preview",
+    "parameters": {
+      "scope": [
+        "/subscriptions/70afbb35-0463-4758-badf-d5aab5bce520/resourceGroups/MyRg/providers/microsoft.insights/components/myai"
+      ],
+      "actionGroupCreationPolicy": "Auto"
+    }
+  },
+  "responses": {
+    "202": {
+      "headers": {},
+      "body": {
+        "id": "ebf4f1bf-2f56-44b2-99b0-870867ae549b",
+        "status": "Starting",
+        "scope": [
+          "/subscriptions/70afbb35-0463-4758-badf-d5aab5bce520/resourceGroups/MyRg/providers/microsoft.insights/components/myai"
+        ]
+      }
+    }
+  }
+}
diff --git a/specification/alertsmanagement/resource-manager/readme.md b/specification/alertsmanagement/resource-manager/readme.md
index 8ff3b9b877a2..a8124adb08db 100644
--- a/specification/alertsmanagement/resource-manager/readme.md
+++ b/specification/alertsmanagement/resource-manager/readme.md
@@ -44,6 +44,16 @@ openapi-type: arm
 tag: package-2019-06-preview
 ```
 
+
+### Tag: package-preview-2021-01
+
+These settings apply only when `--tag=package-preview-2021-01` is specified on the command line.
+
+```yaml $(tag) == 'package-preview-2021-01'
+input-file:
+  - Microsoft.AlertsManagement/preview/2021-01-01-preview/AlertsManagement.json
+  - Microsoft.AlertsManagement/preview/2021-01-01-preview/MigrateFromSmartDetections.json
+```
 ### Tag: package-2019-06-preview
 
 These settings apply only when `--tag=package-2019-06-preview` is specified on the command line.