Articles on: Forms

How to capture UTM and ref parameters

If the URL of your website contains one of the following parameters, Unicorn Platform will automatically add them to the submitted form data:


Form data with utm_campaign parameter

Even though this process is automatic, some 3rd party services require extra configuration to receive URL parameters.


In your MailerLite dashboard, go to Subscribers > Fields. Create a new field for each parameter that you would like to capture.

Additional MailerLite fields for each parameter

Form data with utm_source parameter in MailerLite

To learn more about Mailerlite, please read our guide.


In Mailchimp dashboard, go to Signup forms > Settings tab > Audience fields and |MERGE| tags.

Fields menu in Mailchimp

Create a new field for each parameter that you would like to capture. Mailchimp requires a specific format for field names, so you will need to use alternative parameter names when creating fields in Mailchimp:

For ref use REF
For utm_campaign use UTM_CAMP
For utm_source use UTM_SOURCE
For utm_medium use UTM_MEDIUM
For utm_content use UTM_CONT
For utm_term use UTM_TERM

Additional Mailchimp fields for each parameter

You can also give each field a human-friendly label.

Field labels

Form data with ref parameter in Mailchimp

To learn more about Mailchimp, please read our guide.

Updated on: 12/09/2022

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