strategieko

A simple plugin to give you the power to track source, medium, campaign and keyword on your CF7 forms
This plugin saves any UTM values coming in URL with cookies and let the users browse the website normally.
You dont have to worry about passing the values when users are switching from page to page. All the values are stored and automatically retrieved when a user submits any contact form 7.
The following parameters are recognized:
Source -> utm_source 
Campaign -> utm_campaign or campaign 
Keyword -> utm_term or keyword 
Medium -> utm_medium
Additional setup is required for every form in which you wish to do source tracking. See installation below.
<h3>How to use UTM fields</h3>
https://ga-dev-tools.appspot.com/campaign-url-builder/

Source Tracking for Contact Form 7

Easily track how your visitors that submitted a form got to your site (including source, campaign, medium and keyword tracking).

ludwigmedia

When passing UTM parameters, GCLID, and other parameters to your website it stores this info via a browser cookie for 30 days. 
It can then be inserted into any lead generation form on your website. It automatically adds this extra information as hidden fields on your HTML form.
<h3>Why Install?</h3>
<ul>
<li>Track the source of email submissions</li>
<li>Track ROI of your Google, Bing, and Facebook ad campaigns.</li>
<li>Know which source of traffic is more profitable.</li>
</ul>
<h3>Works With</h3>
It automatically works with most HTML form submissions such as: 
* Contact Form 7 
* WP Form 
* AWeber 
* Mailchimp 
* Salesforce CRM 
* Ninja Forms 
* ActiveCampaign 
* Caldera Forms 
* WooCommerce 
* Infusionsoft 
* etc.
No code changes is needed with your website. Just install this plugin and go. You do need to add support of passing these fields to the service used.
<a href="https://larryludwig.com/plugins/utm-tracker/?utm_source=plugin&utm_medium=organic&utm_campaign=page" rel="nofollow ugc">Read Full Documentation</a>

UTM Tracker

When passing UTM parameters, GCLID, and other parameters to your website it stores this info via a browser cookie for 30 days.

Source Tracking for Contact Form 7 vs UTM Tracker