diff --git a/specification/cognitiveservices/data-plane/CustomSearch/stable/v1.0/CustomSearch.json b/specification/cognitiveservices/data-plane/CustomSearch/stable/v1.0/CustomSearch.json
index 6d63996e9ef8..fc9316f94580 100644
--- a/specification/cognitiveservices/data-plane/CustomSearch/stable/v1.0/CustomSearch.json
+++ b/specification/cognitiveservices/data-plane/CustomSearch/stable/v1.0/CustomSearch.json
@@ -103,7 +103,8 @@
 						"description": "The identifier for the custom search configuration",
 						"required": true,
 						"type": "integer",
-						"format": "int32"
+						"format": "int64",
+						"minimum": 0
 					},
 					{
 						"name": "cc",
diff --git a/specification/cognitiveservices/data-plane/CustomSearch/stable/v1.0/examples/SuccessfulQueryRequest.json b/specification/cognitiveservices/data-plane/CustomSearch/stable/v1.0/examples/SuccessfulQueryRequest.json
index 7e01c9635456..e1d779f0dfac 100644
--- a/specification/cognitiveservices/data-plane/CustomSearch/stable/v1.0/examples/SuccessfulQueryRequest.json
+++ b/specification/cognitiveservices/data-plane/CustomSearch/stable/v1.0/examples/SuccessfulQueryRequest.json
@@ -2,7 +2,8 @@
   "parameters": {
     "X-BingApis-SDK": "true",
     "Ocp-Apim-Subscription-Key": "{API key}",
-    "q": "cortana"
+    "q": "cortana",
+    "customConfig": 123456
   },
   "responses": {
     "200": {