An advanced attribution script that can be added to Additional Scripts in Shopify's Checkout Settings, to ensure traffic attribution for Accelerated Checkouts.

fueled_advanced_attribution_checkout_script.html

{% if first_time_accessed %}
  <!-- Fueled Advanced Attribution Tracking Script -->
  <script defer src="https://www.googletagmanager.com/gtag/js?id=[G_TARGET]"></script>
  <script defer src="https://cdn-client.fueled.io/fueled-client-1.1.0.min.js"></script>
  
  <script>
    const fueledConfig = {
      "analyticsWriteKey": "[ANALYTICS_WRITE_KEY]",
      "frontendStorageUrl": "https://frontend-storage.fueled.io",
      "datahubUrl": "https://datahub.fueled.io",
      "settings": {
        "gTarget": "[G_TARGET]"
      }
    };

    window.dataLayer = window.dataLayer || [];

    function gtag() {
      dataLayer.push(arguments);
    }

    gtag('js', new Date());
    gtag('config', fueledConfig.settings.gTarget);

    window.addEventListener("fueled-ready", function () {
      fueledClient.loadClient(
        fueledConfig.datahubUrl,
        fueledConfig.analyticsWriteKey,
        fueledConfig.settings,
      ).then(() => fueledClient.setFrontendStorage(
        fueledConfig.frontendStorageUrl,
        Shopify.checkout.token,
      ));
    });
  </script>
{% endif %}