diff --git a/specification/monitor/data-plane/preview/2018-09-01-preview/azureMonitorCustomMetricsIngestionApi.json b/specification/monitor/data-plane/preview/2018-09-01-preview/MetricsCreate.json
similarity index 94%
rename from specification/monitor/data-plane/preview/2018-09-01-preview/azureMonitorCustomMetricsIngestionApi.json
rename to specification/monitor/data-plane/preview/2018-09-01-preview/MetricsCreate.json
index 4b2078468da4..bed5a609892f 100644
--- a/specification/monitor/data-plane/preview/2018-09-01-preview/azureMonitorCustomMetricsIngestionApi.json
+++ b/specification/monitor/data-plane/preview/2018-09-01-preview/MetricsCreate.json
@@ -21,8 +21,11 @@
   "paths": {
     "/subscriptions/{subscriptionId}/resourcegroups/{resourceGroupName}/providers/{resourceProvider}/{resourceTypeName}/{resourceName}/metrics": {
       "post": {
-        "summary": "Ingestion API used by Azure custom metrics\r\n            Responsible of below operation\r\n            1. Authorize the request\r\n            2. Deserialize payload request body\r\n            3. Perform validation of the payload\r\n            4. Commits the payload for metrics ingestion",
-        "operationId": "azureMonitorCustomMetricsIngestionApi",
+        "tags": [
+          "Metrics"
+        ],
+        "operationId": "Metrics_Create",
+        "description": "**Post the metric values for a resource**.",
         "consumes": [
           "application/json"
         ],
diff --git a/specification/monitor/data-plane/readme.md b/specification/monitor/data-plane/readme.md
index 1b053b2185eb..09de71e0a763 100644
--- a/specification/monitor/data-plane/readme.md
+++ b/specification/monitor/data-plane/readme.md
@@ -38,7 +38,7 @@ These settings apply only when `--tag=package-2018-09-preview` is specified on t
 
 ``` yaml $(tag) == 'package-2018-09-preview'
 input-file:
-- preview/2018-09-01-preview/azureMonitorCustomMetricsIngestionApi.json
+- preview/2018-09-01-preview/MetricsCreate.json
 ```
 
 # Code Generation