> For the complete documentation index, see [llms.txt](https://docs.chathq.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.chathq.io/api-and-developer-docs/custom-tracking-and-analytics.md).

# Custom Tracking & Analytics

- [Widget Events in Google Analytics](https://docs.chathq.io/api-and-developer-docs/custom-tracking-and-analytics/widget-events-in-google-analytics.md)
- [1. Google Analytics & Google Tag Manager](https://docs.chathq.io/api-and-developer-docs/custom-tracking-and-analytics/widget-events-in-google-analytics/1.-google-analytics-and-google-tag-manager.md)
- [2. GA4 Custom Events & Definitions](https://docs.chathq.io/api-and-developer-docs/custom-tracking-and-analytics/widget-events-in-google-analytics/2.-ga4-custom-events-and-definitions.md)
- [3. Tags & Triggers in Google Tag Manager](https://docs.chathq.io/api-and-developer-docs/custom-tracking-and-analytics/widget-events-in-google-analytics/3.-tags-and-triggers-in-google-tag-manager.md)
- [4. Using the Data Layer to Define Custom Variables](https://docs.chathq.io/api-and-developer-docs/custom-tracking-and-analytics/widget-events-in-google-analytics/4.-using-the-data-layer-to-define-custom-variables.md)
- [5. Creating Custom GTM Variables](https://docs.chathq.io/api-and-developer-docs/custom-tracking-and-analytics/widget-events-in-google-analytics/5.-creating-custom-gtm-variables.md)
- [6. Testing Widget Analytics](https://docs.chathq.io/api-and-developer-docs/custom-tracking-and-analytics/widget-events-in-google-analytics/6.-testing-widget-analytics.md)
- [Tracking Events from Facebook Ads](https://docs.chathq.io/api-and-developer-docs/custom-tracking-and-analytics/tracking-events-from-facebook-ads.md)