What happens to your Shopify Thank you page on August 26, 2026

Stores on non-Plus Shopify plans have to upgrade their Thank you and Order status pages to Checkout Extensibility by August 26, 2026. After that date Shopify upgrades them automatically, and customizations built with additional scripts, checkout.liquid, or script-tag apps are replaced. Rebuild them as blocks and app pixels before the deadline.

In short

• Deadline: August 26, 2026
• Applies to: stores on non-Plus Shopify plans still using the legacy Thank you and Order status pages
• If you do nothing: Shopify replaces the pages automatically and legacy customizations stop running
• What stops working: additional scripts, checkout.liquid customizations, and apps that rely on script tags
• What replaces them: blocks in the checkout and accounts editor, app pixels and custom pixels for tracking, Checkout UI extensions for custom functionality
• Reverting: possible only under narrow conditions, and only before the deadline

Which stores does this deadline apply to?

Every store on a non-Plus Shopify plan still running the legacy Thank you and Order status pages. Shopify Plus stores moved on an earlier timeline. Stores on the Pause and Build plan are upgraded automatically, and pausing your store at any point triggers that same automatic upgrade, which cannot be undone afterward.

To check which version you are on, open Settings then Checkout and look at the Configurations section. A notice about upgrading your Thank you and Order status pages means you are still on the legacy version.

What happens if you do nothing?

On August 26, 2026, Shopify automatically replaces the legacy Thank you and Order status pages with the Checkout Extensibility versions. Customizations you built with additional scripts, checkout.liquid, or script-tag apps do not carry over.

Stores that accumulated customizations over several years lose the most, and often do not know what is in there. Typical contents include a conversion pixel a former agency pasted in, a post-purchase survey, a referral widget, and a tracking-number lookup. Tracking degrades silently when legacy scripts are not migrated, and attribution gaps appear without anyone noticing until reporting starts to drift.

Will your Meta and Google conversion tracking break?

Only if you do not migrate it. Nothing errors when a pixel stops firing, so the loss shows up in your reporting rather than in your admin, which is why this belongs at the front of the migration rather than the end.

Every snippet currently sitting in additional scripts needs a replacement. Official integrations and supported app pixels cover platforms such as Meta Ads and Google Ads. Anything without an app becomes a custom pixel under Settings then Customer events.

Browser-side tracking was never fully reliable on this page. It can miss purchases during network interruptions, when ad blockers are aggressive, or when a customer leaves before client-side tracking finishes.

The migration is a good moment to strengthen backend reporting alongside it. Shopify's order webhooks give you a reliable server-side record of completed orders, emitted from Shopify's own backend regardless of what the customer's browser did next. Order webhooks are not a substitute for ad platform attribution. For Meta Ads, Google Ads, and similar platforms, keep using their supported integrations, app pixels, web pixels, or Conversions API paths where available.

What exactly stops working?

Three mechanisms are being retired on these two pages: additional scripts, checkout.liquid customizations, and apps that rely on script tags.

Additional scripts are already locked. According to Shopify, the additional scripts section in Checkout settings has been view-only since August 28, 2025, so you can read what is in there but not edit it. Read it today regardless of when you plan to migrate, because it is the inventory of everything you are about to lose.

What replaces each one?

Blocks are the drag-and-drop content sections in the checkout and accounts editor. Shopify maintains App Store collections of apps offering blocks for the common cases, including order tracking, reviews, loyalty and referrals, subscriptions, upsell and cross-sell, and forms and surveys.

Arbitrary JavaScript can no longer be injected directly into these pages. Custom functionality now runs through Checkout UI extensions and web pixels inside Shopify's supported sandbox. That is more constrained than pasting code into a text field, and it is the trade Shopify made for a checkout that a third party's script cannot break.

Do not click Upgrade first

The Upgrade button publishes. Install your replacement apps, rebuild your customizations as blocks, set up your pixels, and verify tracking before you press it. Once you upgrade, legacy customizations stop running.

How do you find out what is on your pages right now?

Shopify generates a personalized upgrade report listing the customizations it found on your store.

1. Go to Settings then Checkout.
2. In the Configurations section, expand the upgrade notice and click Review customizations.
3. Work through the Apps section. Apps their developers have already updated appear here with instructions for reconnecting tracking and re-adding customizations as blocks.
4. Work through the Incompatible apps section. These are apps whose developers have not shipped a compatible version. Contact the developer or find a replacement.
5. Work through your additional scripts. Shopify's upgrade guide groups them by purpose, so you can see which are tracking, which are authentication, which are order tracking, and so on.
6. Test your replacements.
7. Click Upgrade to publish.
8. Validate that your conversion events are firing after launch.

An empty report means you have nothing to migrate and can go straight to publishing.

What do the new pages do that the old ones did not?

Disclosure before this section: Pier39 AI builds a post-purchase app that runs on these pages, so we have a reason to care what they can do. Check the Shopify documentation rather than taking our word for it.

The new Order status page is a customer account page, which changes what it can do on repeat visits. It includes features such as Buy again, shown by default and hideable from the checkout and accounts editor, and it supports self-serve returns once Shopify's return features are set up.

The Order status page gets opened repeatedly between purchase and delivery, and it now carries reorder and returns rather than functioning as a static receipt.

What can you no longer do?

Per-market customization of the Thank you and Order status pages is not supported. If you previously showed different post-purchase content by Shopify Market or region, you will need to move to a single experience across all markets.

Hiding individual items inside a bundle is not supported.

Anything that depended on reading customer PII from the page needs rethinking, since pulling email or phone from the page for advertising or automation does not survive the move.

Can you revert after upgrading?

Only under narrow conditions, and only before the deadline. Shopify allows a revert if your store was created before January 6, 2025, your pages had pre-existing customizations using additional scripts or script-tag apps, and you upgraded manually within the previous 30 days. Your block-based customizations are saved as a draft configuration you can publish again later.

Automatic upgrades cannot be reverted, and neither can the upgrade triggered by pausing your store. If you want a safety net, upgrade manually and early, while the revert path is still open.

FAQ

When is the deadline? August 26, 2026, for stores on non-Plus Shopify plans. Shopify Plus stores moved on an earlier timeline.

Which Shopify plans are affected? Non-Plus plans face the August 26, 2026 deadline. Plus stores have already transitioned. Pause and Build stores are upgraded automatically.

How do I know whether I am already upgraded? Open Settings then Checkout and look at the Configurations section. If an upgrade notice is showing, you are still on the legacy pages.

What happens if I miss the deadline? Shopify upgrades your pages automatically. Customizations built with additional scripts, checkout.liquid, or script-tag apps are replaced, and an automatic upgrade cannot be reverted.

Will I lose my Meta or Google conversion tracking? Only if you do not migrate it. Each snippet in additional scripts needs replacing with an app pixel from the relevant integration, or a custom pixel under Settings then Customer events.

Can I set everything up before publishing? Yes. You build your customizations on the new pages first, then click Upgrade to publish them. Do not upgrade before your replacements are in place.

Can I still edit my additional scripts? No. That section has been view-only since August 28, 2025. You can read what is there, which is the inventory you need for the migration.

What if one of my apps has not been updated? It appears in the Incompatible apps section of your upgrade report. Contact the developer for a timeline, or replace the app before the deadline.

Do I need a developer? Not for blocks and pixels, which are configured in your admin. Checkout UI extensions and custom apps require development work.

Does pausing my store affect this? Yes. Pausing triggers the automatic upgrade, and that upgrade cannot be reverted even after you unpause.

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