# Shopify Checkout Extensibility: Tracking Migration *Google Ads tracking breaks August 28, 2025 if you use custom checkout scripts. Migrate to Shopify Web Pixels before the deadline.* **Keywords:** shopify checkout extensibility, shopify checkout extensibility tracking, shopify august 2025 deadline, shopify web pixel migration, checkout.liquid deprecated, shopify tracking migration, google ads shopify checkout extensibility **Breadcrumb:** Home > Resources > Checkout Extensibility Migration **Badge:** Time-Sensitive **Read Time:** 10 min read | **Updated January 2026** --- ## Table of Contents - [What is Checkout Extensibility?](#what-is-checkout-extensibility) - [Key Deadlines](#key-deadlines) - [What Will Break](#what-breaks) - [Check Your Setup](#check-your-setup) - [Migration Options](#migration-options) - [Web Pixels Explained](#web-pixels-explained) - [Step-by-Step Migration](#step-by-step-migration) - [Testing Your Migration](#testing) - [FAQ](#faq) --- > **Sidebar CTA** > **Already compatible** > ScaleUp uses Web Pixels. No migration needed. > [Install Free →](https://apps.shopify.com/scaleup-for-google-ads?utm_source=website&utm_medium=sidebar_cta&utm_campaign=resources&utm_content=checkout_extensibility_guide) ### Skip the migration headaches ScaleUp uses Shopify's Web Pixel API natively — no checkout.liquid scripts to migrate. [Install Free on Shopify](https://apps.shopify.com/scaleup-for-google-ads?utm_source=website&utm_medium=inline_cta&utm_campaign=guide&utm_content=checkout_extensibility) --- ## What is Shopify Checkout Extensibility? Checkout Extensibility is Shopify's new framework for customizing the checkout experience. It replaces the old checkout.liquid file that Shopify Plus merchants used to customize their checkout pages. The key change affecting conversion tracking: custom JavaScript can no longer run directly on checkout pages. Instead, Shopify introduced Web Pixels — a sandboxed environment where tracking scripts run securely. **Why Shopify Made This Change** - **Security**: Sandboxed pixels can't access sensitive checkout data - **Performance**: Pixels run asynchronously without blocking checkout - **Consistency**: Same tracking system across all Shopify plans --- ## Key Deadlines You Need to Know > ℹ️ **Don't Wait Until the Deadline** > > Migrating early gives you time to test, identify issues, and ensure your conversion data remains accurate. Waiting until the last minute risks losing valuable tracking data during your migration. --- ## What Will Break After the Deadline --- ## How to Check If Your Setup Is Affected Follow these steps to determine if your Google Ads tracking needs migration: > ⚠️ **Common Signs Your Tracking Will Break** > > - You see "gtag" or "dataLayer.push" in Additional Scripts > - Your GTM container ID appears in checkout page source > - You manually added Google Ads conversion code to Shopify > - An agency set up tracking using "the old method" 1. **Check Additional Scripts** Go to Settings → Checkout → Order status page and look for "Additional scripts" 2. **Check for checkout.liquid (Plus only)** Go to Online Store → Themes → Edit code and search for checkout.liquid 3. **Review Your Apps** Go to Settings → Customer events (or Apps → Customer events in some versions) 4. **Test a Purchase** Use Google Tag Assistant to verify where your conversion tags are firing from. --- ## Your Migration Options You have three main paths to migrate your Google Ads tracking to the new system: --- ## Understanding Shopify Web Pixels Web Pixels are Shopify's new tracking framework. Understanding how they work helps you choose the right migration approach. --- ## Step-by-Step Migration Guide Follow these steps to migrate your Google Ads tracking. We recommend Option A for most merchants. --- ## Testing Your Migration After migrating, verify everything works correctly before removing your old tracking code. > ⚠️ **Important: Remove Old Code After Testing** > > Once you confirm the new tracking works, delete the old Additional Scripts code immediately. Running both will cause duplicate conversions and inflate your data. 1. **Check Customer Events in Shopify** Go to Settings → Customer events. Your pixel should show as "Connected" with recent activity. 2. **Use Google Tag Assistant** Complete a test purchase and verify the conversion tag fires on the thank-you page. 3. **Check Google Ads Conversion Status** In Google Ads, go to Tools → Conversions. Your conversion action should show "Recording conversions." 4. **Compare Data for 48-72 Hours** Run both old and new tracking in parallel briefly, then compare conversion counts before removing the old code. --- ## Frequently Asked Questions --- ## Migrate Your Tracking Today ScaleUp uses Shopify's Web Pixel API — fully compatible with Checkout Extensibility. Set up in under 5 minutes with no migration hassle. [Install Free on Shopify](https://apps.shopify.com/scaleup-for-google-ads?utm_source=website&utm_medium=cta&utm_campaign=resources&utm_content=checkout_extensibility_footer_cta) *No credit card required* --- ## Sources 1. [Shopify Web Pixels API Documentation](https://shopify.dev/docs/api/web-pixels-api) 2. [Shopify Help: Custom Pixels](https://help.shopify.com/en/manual/promoting-marketing/pixels/custom-pixels) 3. [Shopify: checkout.liquid Deprecation](https://shopify.dev/docs/storefronts/themes/architecture/layouts/checkout-liquid) --- ## About the Author **Jamie Scott** Founder & CEO, ScaleUp Jamie has helped hundreds of Shopify merchants navigate platform changes and maintain accurate conversion tracking. --- ## Related Resources - **[Checkout Extensibility Tracking Changes 2026](/resources/shopify-checkout-extensibility-tracking-changes-2026)** What changes and what breaks with Shopify's checkout migration - **[Enhanced Conversions Setup](/resources/enhanced-conversions-shopify-setup)** Improve accuracy with first-party data - **[Server-Side vs Client-Side Tracking](/blog/server-side-vs-client-side-tracking-shopify)** Compare tracking methods for Shopify --- ## Frequently Asked Questions **What is the Shopify Checkout Extensibility deadline?** Shopify Plus stores must migrate by August 28, 2025. Non-Plus stores have until August 26, 2026. After these dates, checkout.liquid and additional scripts on order status pages will stop working. **Will my Google Tag Manager tracking break?** Yes, if you use GTM scripts on checkout, thank you, or order status pages via checkout.liquid or Additional Scripts, they will stop working after the deadline. You need to migrate to Web Pixels or use an app that supports Checkout Extensibility. **How do I know if my tracking will be affected?** If you have custom JavaScript in Settings > Checkout > Order status page Additional scripts, or if you use checkout.liquid customizations for tracking, your setup will be affected. The Google & YouTube app and dedicated tracking apps like ScaleUp are already compatible. **What are Shopify Web Pixels?** Web Pixels are Shopify's new tracking framework that runs in a secure sandbox environment. They subscribe to customer events (like purchases) and can send data to marketing platforms. Web Pixels work with Checkout Extensibility and are the replacement for checkout.liquid scripts.