Using JavaScript to extract field data from Gravity Forms for external tracking

Other Questions Gravity Forms
1

I’m trying to integrate our form data with an analytics platform that gave us this JavaScript snippet to collect user information:

<script type="text/javascript">
   var _tracking_data = {
      "user_first": "FIRST_NAME_VALUE",
      "user_last": "LAST_NAME_VALUE",
      "user_email": "EMAIL_VALUE"
    };
    _tracking_send('submit', 29841, null, JSON.stringify(_tracking_data));
</script>

I added this code using the gform_confirmation hook in my theme’s functions.php file. The idea is to trigger this script when someone submits the form:

add_filter( 'gform_confirmation_52', 'add_tracking_script', 10, 4 );
function add_tracking_script( $confirmation, $form, $entry) {
        $first_name = rgar( $entry, '2.1' );
        $confirmation .= "<script type='text/javascript'>
   var _tracking_data = {
      'user_first': $first_name
    };
    _tracking_send('submit', YYYYYY, null, JSON.stringify(_tracking_data));
</script>";
 
    return $confirmation;
}

The problem is that no data seems to reach the tracking system. Could there be an issue with how I’m implementing this code?

2

Had the same nightmare a few months ago. The redirect was firing too fast - didn’t give the tracking script time to execute. Analytics platforms need a moment to process and send data, but form confirmations redirect instantly. I switched to the gform_after_submission hook. It runs server-side after processing but before redirecting. Then use wp_add_inline_script to inject your tracking code properly. Also check if your analytics platform does server-side tracking - way more reliable than client-side JavaScript that gets blocked or fails to load.

3

u’re missing quotes around the PHP var in your JS. Wrap $first_name with quotes like '$first_name' or it won’t be valid JSON. also, check your browser console for errrors - that’s where these issues usually show up.

4

It’s probably a timing issue. The tracking script fires right after form submission, but analytics platforms usually need a second to initialize. I’ve hit this before - the tracking system just isn’t ready for the data yet. Try wrapping your tracking call in setTimeout() with about 500ms delay. Also, don’t embed PHP variables directly in JavaScript - use wp_json_encode() to escape them properly. One more thing: check if your analytics platform needs the page to stay loaded for a bit to actually send the data.