<!--
{
  "availability" : [
    "watchOS: 4.0.0 -"
  ],
  "documentType" : "symbol",
  "framework" : "WatchKit",
  "identifier" : "/documentation/WatchKit/WKSnapshotReason/complicationUpdate",
  "metadataVersion" : "0.1.0",
  "role" : "Case",
  "symbol" : {
    "kind" : "Case",
    "modules" : [
      "WatchKit"
    ],
    "preciseIdentifier" : "c:@E@WKSnapshotReason@WKSnapshotReasonComplicationUpdate"
  },
  "title" : "WKSnapshotReason.complicationUpdate"
}
-->

# WKSnapshotReason.complicationUpdate

The app updated the complication timeline.

```
case complicationUpdate
```

## Discussion

These snapshot refresh tasks are only triggered when the WatchKit extension has a complication on the current watch face.

---

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)