diff --git a/code/API_definitions/device-data-volume-subscriptions.yaml b/code/API_definitions/device-data-volume-subscriptions.yaml
index f94e6c6..10e877d 100644
--- a/code/API_definitions/device-data-volume-subscriptions.yaml
+++ b/code/API_definitions/device-data-volume-subscriptions.yaml
@@ -705,19 +705,19 @@ components:
     ErrorInfo:
       type: object
       required:
-        - message
         - status
         - code
+        - message
       properties:
-        message:
-          type: string
-          description: A human readable description of what the event represent
         status:
           type: integer
           description: HTTP response status code
         code:
           type: string
-          description: Friendly Code to describe the error
+          description: A human-readable code to describe the error
+        message:
+          type: string
+          description: A human-readable description of what the event represents
 
     SubscriptionEventType:
       type: string
diff --git a/code/API_definitions/device-data-volume.yaml b/code/API_definitions/device-data-volume.yaml
index 9b7ed83..685c1f1 100644
--- a/code/API_definitions/device-data-volume.yaml
+++ b/code/API_definitions/device-data-volume.yaml
@@ -353,19 +353,19 @@ components:
     ErrorInfo:
       type: object
       required:
-        - message
         - status
         - code
+        - message
       properties:
-        message:
-          type: string
-          description: A human readable description of what the event represent
         status:
           type: integer
           description: HTTP response status code
         code:
           type: string
-          description: Friendly Code to describe the error
+          description: A human-readable code to describe the error
+        message:
+          type: string
+          description: A human-readable description of what the event represents
 
   responses:
     Generic400: