<!--
{
  "availability" : [
    "iOS: 26.0.0 -"
  ],
  "documentType" : "symbol",
  "framework" : "TelephonyMessagingKit",
  "identifier" : "/documentation/TelephonyMessagingKit/RCSService/viabilityNotifications",
  "metadataVersion" : "0.1.0",
  "role" : "Instance Property",
  "symbol" : {
    "kind" : "Instance Property",
    "modules" : [
      "TelephonyMessagingKit"
    ],
    "preciseIdentifier" : "s:21TelephonyMessagingKit10RCSServiceC22viabilityNotificationsQrvp"
  },
  "title" : "viabilityNotifications"
}
-->

# viabilityNotifications

An asynchronous sequence of service viability notifications produced by the service.

```
final var viabilityNotifications: some AsyncSequence<RCSService.ViabilityNotification, Never> { get throws }
```

## Discussion

Use a `for`-`await`-`in` loop to receive [`RCSService.ViabilityNotification`](/documentation/TelephonyMessagingKit/RCSService/ViabilityNotification) instances from this property.

---

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)