api-docs/docs/browser-tracker/markdown/browser-tracker.activitycallback.md
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[Home](./index.md) > [@snowplow/browser-tracker](./browser-tracker.md) > [ActivityCallback](./browser-tracker.activitycallback.md)
## ActivityCallback type
The callback for enableActivityTrackingCallback
<b>Signature:</b>
```typescript
type ActivityCallback = (data: ActivityCallbackData) => void;
```