<!--
{
  "availability" : [
    "App Store Server Notifications: 2.0.0 -"
  ],
  "documentType" : "symbol",
  "framework" : "AppStoreServerNotifications",
  "identifier" : "/documentation/AppStoreServerNotifications/notificationUUID",
  "metadataVersion" : "0.1.0",
  "role" : "Type",
  "symbol" : {
    "kind" : "Type",
    "modules" : [
      "App Store Server Notifications"
    ],
    "preciseIdentifier" : "data:store_s2s:notificationUUID"
  },
  "title" : "notificationUUID"
}
-->

# notificationUUID

A unique identifier for the notification.

```
string notificationUUID
```

## Discussion

The App Store server assigns a unique identifer to each notification it sends. Use this value to identify, and ignore, duplicate notifications.

---

Copyright &copy; 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)