GoHighLevel Form Google Ads Conversion Tracking with GTM in 2026 GoHighLevel Lead Form Tracking

				
					<script>
(function() {
  // Listen for window message events broadcasted from GHL iframe forms
  window.addEventListener('message', function(event) {
    // Return early if no event payload exists
    if (!event.data) return;

    var payload = event.data;

    // Handle stringified JSON data payloads emitted by some iframe wrappers
    if (typeof payload === 'string') {
      try {
        payload = JSON.parse(payload);
      } catch (e) {
        // Payload is a standard string, continue parsing
      }
    }

    // Identify standard GoHighLevel form/survey submission message keys
    var isGHLSubmission = false;
    
    if (typeof payload === 'object' && payload !== null) {
      if (
        payload.type === 'form-submitted' || 
        payload.event === 'ghl_form_submit' || 
        payload.type === 'ghl_form_submission' ||
        payload.formId || 
        (payload.msg && payload.msg === 'form-submitted')
      ) {
        isGHLSubmission = true;
      }
    } else if (typeof payload === 'string' && (payload.indexOf('form-submitted') !== -1 || payload.indexOf('ghl_form') !== -1)) {
      isGHLSubmission = true;
    }

    // Process valid GoHighLevel form submission event
    if (isGHLSubmission) {
      // Extract form metadata and lead details passed in postMessage payload
      var formId = (payload && (payload.formId || payload.form_id || payload.id)) ? (payload.formId || payload.form_id || payload.id) : 'ghl_embedded_form';
      var email = (payload && (payload.email || payload.email_address)) ? (payload.email || payload.email_address) : '';
      var phone = (payload && (payload.phone || payload.phone_number)) ? (payload.phone || payload.phone_number) : '';
      var firstName = (payload && (payload.first_name || payload.name)) ? (payload.first_name || payload.name) : '';
      var lastName = (payload && payload.last_name) ? payload.last_name : '';

      // Push structured event and user data into the parent page Data Layer
      window.dataLayer = window.dataLayer || [];
      window.dataLayer.push({
        'event': 'ghl_form_submit',
        'ghl_form_id': String(formId),
        'user_data': {
          'email': email,
          'phone_number': phone,
          'first_name': firstName,
          'last_name': lastName
        }
      });
    }
  });
})();
</script>