Set up SourceTag with Gravity Forms

SourceTag populates hidden fields in your forms with attribution data. For Gravity Forms, you need to add those hidden fields to your form first.

What you need

SourceTag installed on your site (script tag or WordPress plugin)
A Gravity Forms form

Step 1: Open your form in the Gravity Forms editor

Go to Forms > Edit on the form you want to track.

Step 2: Add hidden fields

From the “Standard Fields” section, drag a Hidden field onto your form. Repeat for each field you want to capture.

Core fields (add these)

Add a hidden field for each of the following. Set the Field Label to the field name:

st_fc_channel
st_fc_detail_1
st_fc_detail_2
st_fc_detail_3
st_fc_detail_4
st_lc_channel
st_lc_detail_1
st_lc_detail_2
st_lc_detail_3
st_lc_detail_4
st_fc_landing_page
st_lc_landing_page

Optional extended fields

If you’ve enabled extended field groups in your SourceTag dashboard, also add hidden fields for those. Common ones:

st_fc_click_id and st_lc_click_id (click IDs)
st_visits (visit count)
st_days_to_convert (days since first visit)
st_device (device type)

See Captured Fields for the full list of available fields.

Step 3: Set the field label

For each hidden field, click on it and set the Field Label to the exact field name (e.g. st_fc_channel).

Do not enable “Allow field to be populated dynamically”. SourceTag populates the fields directly via JavaScript, not URL parameters. Leaving dynamic population disabled prevents anyone from overriding the attribution data via query strings.

Step 4: Save and test

Save your form. Visit a page with this form using UTM parameters:

?utm_source=test&utm_medium=cpc&utm_campaign=test-campaign

Submit the form. Check the Gravity Forms entry. You should see the attribution data in the hidden fields.

Tips

You can copy field names from the Fields page in your SourceTag dashboard (each name has a copy button).
The hidden fields won’t be visible to visitors. They only appear in form entries and notifications.
If you’re sending Gravity Forms data to a CRM, make sure to map these fields in your CRM feed.