Marketo UTM Tracking Integration

• How to Track UTMs in Marketo form
• Send Marketo UTMs via Zapier or Webhook

How to Track UTMs in Marketo form

UTM attribution overview

This guide explains How to Track UTMs in Marketo form with HandL UTM Grabber. It helps you pass lead attribution into your CRM, email platform, or marketing automation workflow and keep the marketing context needed for accurate reporting across forms, bookings, signups, and sales.

Our plugin supports Marketo forms out of the box, just make sure the UTM fields are added to your form and the naming convention matches with our plugin.

For example:

As you can see in the picture above, traffic with UTM values will prefill the hidden fields in your form and they will be submitted along with the other prospect data.

Incase your form does not track the UTMs, do the following

Replace this

<script src="//app-ab43.marketo.com/js/forms2/js/forms2.min.js"></script>
<form id="mktoForm_1000"></form>
<script>MktoForms2.loadForm("//app-ab43.marketo.com", "<some id>", 1000);</script>

to

<script src="//app-ab43.marketo.com/js/forms2/js/forms2.min.js"></script>
<form id="mktoForm_1000"></form>
<script>
MktoForms2.loadForm("//app-ab43.marketo.com", "<some id>", 1000);
MktoForms2.whenReady(function (form) {
    jQuery.each(handl_utm_all_params, function( i,v ) {
		var curval = decodeURI(Cookies.get(v))
		if (curval != 'undefined') {
			jQuery("[name*="+v+"]").val(curval)
		}
	});
});
</script>

Send Marketo UTMs via Zapier or Webhook

UTM attribution overview

This walkthrough covers sending full UTM Grabber data from Marketo to Zapier, Make, or your own webhook. Handy when you need gclid, fbclid, first-touch fields, or custom params alongside the lead or order.

For the primary setup, see the main Marketo guide.

When a webhook makes sense

Native fields in Marketo often stop at basic UTMs. A webhook lets you push everything UTM Grabber stores without trimming values or losing click IDs.

Thank-you page script

Paste this on your confirmation page. Swap in your Zapier or Make hook URL.

<script>
var qvars = {};
window.location.href.replace(/[?&]+([^=&]+)=([^&]*)/gi, function(m, key, value) {
    qvars[key] = decodeURIComponent(value.replace(/\+/g, ' '));
});
qvars = Object.assign({}, (typeof handl_utm !== 'undefined' ? handl_utm : {}), qvars);
setTimeout(function() {
    var data = new URLSearchParams(qvars).toString();
    var xmlHttp = new XMLHttpRequest();
    xmlHttp.open('GET', 'https://hooks.zapier.com/hooks/catch/YOUR_ID/YOUR_KEY/?' + data, true);
    xmlHttp.send(null);
}, 1000);
</script>

Full pattern explained in Triggering Zapier on Thank you Page.

Quick Zapier / Make checklist

1. Create a Catch Hook trigger and copy the URL
2. Run a test conversion with UTMs in the landing URL
3. Confirm gclid, utm_source, and email (if present) show up in the payload
4. Map fields into your CRM or spreadsheet

Parameter reference: Native WP Shortcodes.

Make users: see Make Integromat integration.