api-docs/docs/browser-tracker/markdown/browser-tracker.activitytrackingconfigurationcallback.md
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[Home](./index.md) > [@snowplow/browser-tracker](./browser-tracker.md) > [ActivityTrackingConfigurationCallback](./browser-tracker.activitytrackingconfigurationcallback.md)
## ActivityTrackingConfigurationCallback interface
The callback for enableActivityTrackingCallback
<b>Signature:</b>
```typescript
interface ActivityTrackingConfigurationCallback
```
## Properties
| Property | Type | Description |
| --- | --- | --- |
| [callback](./browser-tracker.activitytrackingconfigurationcallback.callback.md) | ActivityCallback | The callback to fire based on heart beat |