diff --git a/specification/quantum/resource-manager/Microsoft.Quantum/preview/2019-11-04-preview/examples/quantumWorkspacesCheckNameAvailability.json b/specification/quantum/resource-manager/Microsoft.Quantum/preview/2019-11-04-preview/examples/quantumWorkspacesCheckNameAvailability.json
index 78dbf1fe48b1..34c0d6f1cbf6 100644
--- a/specification/quantum/resource-manager/Microsoft.Quantum/preview/2019-11-04-preview/examples/quantumWorkspacesCheckNameAvailability.json
+++ b/specification/quantum/resource-manager/Microsoft.Quantum/preview/2019-11-04-preview/examples/quantumWorkspacesCheckNameAvailability.json
@@ -11,8 +11,9 @@
   "responses": {
     "200": {
       "body": {
-        "nameAvailable": true,
-        "reason": ""
+        "nameAvailable": false,
+        "reason": "AlreadyExists",
+        "message": "Resource name already exists"
       }
     }
   }
diff --git a/specification/quantum/resource-manager/Microsoft.Quantum/preview/2019-11-04-preview/quantum.json b/specification/quantum/resource-manager/Microsoft.Quantum/preview/2019-11-04-preview/quantum.json
index e8941d9e760c..036be7d3bfb6 100644
--- a/specification/quantum/resource-manager/Microsoft.Quantum/preview/2019-11-04-preview/quantum.json
+++ b/specification/quantum/resource-manager/Microsoft.Quantum/preview/2019-11-04-preview/quantum.json
@@ -930,6 +930,11 @@
         "reason": {
           "type": "string",
           "description": "The reason of unavailability."
+        },
+        "message": {
+          "readOnly": true,
+          "type": "string",
+          "description": "The detailed info regarding the reason associated with the Namespace."
         }
       }
     }