AFL UTM Tracker Documentation

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Mapping conversion attribution data with Webhook

You will be able to send the captured UTM parameters from your Gravity Forms submissions to any webhook URL using our AFL UTM Tracker plugin and the Gravity Forms Webhook Add-on,

We will be using Zapier’s Webhook for our tutorial.

For a full list of conversion attribution values which you can access, please view our Attribution Meta List.

Requirement / Compatibility:
  • Gravity Forms Webhook Add-on version 1.5.0 or higher.
  • Gravity Forms Webhook Add-on version 1.3.0.

NOTE: Some version may require you to download the add-on from the Gravity Forms official website.


  1. Go to
  2. Create a new Zap.
  3. Search for ‘Webhook by Zapier‘.
  4. Set the Trigger Event to ‘Catch Hook‘ and Continue.
  5. Copy the Custom Webhook URL and Continue.
Zapier Webhook Trigger Screenshot
Webhook by Zapier Trigger
Zapier Webhook - Catch Hook
Select Catch Hook
Copy Zapier Webhook URL
Copy Zapier Webhook URL
  1. Go to your WordPress Admin.
  2. Make sure that you have already installed the Gravity Forms Webhook Add-on.
  3. Select a Form > Settings > Webhook.
  4. Add a New Webhook.
  5. Paste the Custom Webhook URL into the Request URL.
  6. Set the Request Method as POST.
  7. Set the Request Format as FORM.
  8. Save Settings.
Gravity Forms Webhook Screenshot
Gravity Forms Webhook Screenshot
  1. Return to
  2. Below the Refresh Fields button, click on Continue.
  3. Don’t click on the Test Trigger button yet.
  4. Go to your website and submit your form.
  5. Go to, click on the Test Trigger button.
  6. You will see a list of our variables with the _afl_wc_utm prefix.
  7. Click Continue to add your Action.
Zapier Test Trigger
Zapier Test Trigger