# Track UTMs on Thinkific Enrollment Links

## UTM attribution overview

Thinkific UTM Tracking Integration only records UTMs that land on the checkout URL at purchase time. UTM Grabber keeps them in cookies on your site. This page explains how to pass that data through before the customer pays.

### What to expect

Same as Teachable: param passthrough on checkout URLs.

### Steps

1. Build enroll links with handl\_utm params

### Append UTMs with utm-out

```
<a href="https://your-checkout-url.example/product" class="utm-out">Buy now</a>
```

UTM Grabber rewrites the link with cookie values. Details: [utm-out class guide](https://docs.utmgrabber.com/books/102-getting-started-for-handl-utm-grabber-v3/page/appending-utms-to-the-buttons-using-class-name-attributes-selectively).

For webhook-based attribution after purchase, see [Send Thinkific UTMs via Webhook](https://docs.utmgrabber.com/books/thinkific-integration/page/end-hinkific-s-via-ebhook).