Track UTMs on WebinarJam Registration

UTM attribution overview WebinarJam 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 Webinar regs are high intent. Pass UTMs through registration URLs and thank-you webhooks. Steps Append handl_utm to WebinarJam reg links Use post-webinar thank-you page webhook for full payload 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 . 
 For webhook-based attribution after purchase, see Send WebinarJam UTMs via Webhook .