Shopify's checkout extensibility deadlines are here. Legacy checkouts revert to the default, Scripts stopped running, and old tracking quietly stopped attributing sales. This free tool scans your storefront for the legacy tracking that broke, then hands you a checklist for what to verify in admin.
The legacy checkout patterns that break on the 2026 deadlines. The tracking ones are visible from your storefront; the rest live in your admin.
An inline fbq snippet is the Additional Scripts pattern that stopped receiving customer data on the lockdown. Meta conversions under-report, dragging reported ROAS down.
Inline GA or gtag in the theme is the old tracking path. After the lockdown it stops passing purchase data, so GA4 logs conversions as unattributed sessions.
A GTM container that fed checkout tracking is exactly what the lockdown broke. Purchase events routed through it can silently stop attributing revenue.
Shopify's Web Pixels manager is the migrated way to run tracking. Not seeing it suggests your tracking may still rely on the legacy path that's being removed.
Scripts stopped running June 30, 2026. Custom discount, shipping, and bundle logic must be rebuilt as Shopify Functions or it silently stopped working.
Legacy checkout.liquid and order-status customizations are being removed. Branding moves to the Checkout Editor, logic to UI extensions and Functions.
Shopify Scripts stopped running on June 30, 2026, so custom discount, shipping, and bundle logic must move to Shopify Functions. The Additional Scripts field was locked on August 28, 2025, which broke legacy Meta and Google tracking at checkout. Legacy checkout.liquid is hard-blocked on August 13, 2026 for Plus stores and removed for all stores by August 26, 2026, after which unmigrated stores revert to a default checkout.
The clearest signal is in your admin: go to Settings > Checkout. If you see an Upgrade button, you're still on the legacy checkout. This tool checks the part it can see from outside, which is legacy tracking still injected inline in your storefront, and gives you a checklist for the admin-only items.
Yes. It's completely free with no account and no limit. It reads the public page you enter and stores nothing. There's no AI or paid API on our side, so there's nothing to charge for.
No, and it doesn't claim to. Your checkout is behind the cart and login, so no external tool can read it. This checker reads your storefront for legacy tracking signals that broke on the lockdown, and gives you an accurate checklist for the settings only you can see in admin.
Unmigrated stores are automatically reverted to Shopify's default checkout, so custom branding, custom fields, and legacy scripts stop working. Merchants who reverted have reported conversion drops of 8 to 14 percent, largely from broken tracking and lost checkout customizations.
Everything the deadline changes, and how to migrate each piece before it costs you sales.
Every date, what breaks at each one, and what to do about it.
How to tell if you're affected, and check your store in two minutes.
Move Meta and Google Analytics off the locked Additional Scripts field.
Rebuild discounts, shipping, and bundle logic that Scripts used to run.
