On August 26, your thank-you page tracking stops. Nothing will show an error.
Shopify auto-upgrades the Thank you and Order status pages on non-Plus stores on August 26, 2026, and the upgrade removes every customization that lives in the Additional Scripts box. You did not need to use Shopify Scripts to be affected — you only needed to have pasted a snippet into that box once. This page shows you how to find out what you are about to lose, in about two minutes, without installing anything.
The two-minute check — do this before you read anything else
You do not need a developer or an app to find out how exposed you are. Whatever text sits in one particular box is, exactly and completely, your list of what breaks on August 26.
- Open your Shopify admin and go to Settings.
- Open Checkout.
- Scroll to the Order status page section.
- Find the Additional scripts box and read what is in it.
- Copy everything out of it into a note, a document, an email to yourself — anywhere outside Shopify.
If the box is empty, you can stop here. You have nothing in Additional Scripts to lose, and the page upgrade will not take anything away from you.
If there is anything in it, that text is your migration list. Every snippet in that box stops running when the pages are upgraded.
You will not be able to edit the box, only read it. That is expected — Shopify froze it a year ago: “As of August 28, 2025, the additional scripts section in the Checkout settings is view-only. You can no longer manually edit your additional scripts.”
Source: Shopify Help Center, Upgrading and replacing your Thank you and Order status pages (non-Plus).
What is usually in that box — and why nobody remembers putting it there
The Additional Scripts box was the standard place to paste anything that needed to run after an order was placed. Over years, agencies, freelancers, app onboarding wizards and past staff all added to it. In most stores it contains some mixture of:
- Conversion pixels — Google Ads, Meta, TikTok, Pinterest, Bing. This is the expensive one.
- Affiliate and referral tags — the snippet that tells a partner network a sale happened, and therefore who gets paid.
- Google Customer Reviews opt-in, and other post-purchase review requests.
- Analytics and session recording — GA4 snippets, Microsoft Clarity, Hotjar.
- Post-purchase upsell or survey code added by an app that has since been uninstalled.
- One undocumented snippet that nobody currently at the company can identify. There is almost always one.
Shopify's own guide names the incompatible categories directly: apps that developers have not updated for the new pages, custom scripts for tracking and analytics, scripts that customize the page, and scripts used for authentication or order tracking.
Why this costs real money
Because it fails silently, and silent failure gets misdiagnosed.
On August 27 your store works. Customers check out, orders arrive, fulfilment runs, nothing in the admin looks wrong. What changed is invisible from inside Shopify: your ad platforms are no longer being told that those orders happened.
A week later your Google Ads and Meta dashboards show conversions collapsing while spend continues. Every instinct says the campaigns broke. The common, reasonable, and completely wrong reaction is to pause the campaigns that were actually still performing — and because reported conversions are now zero either way, there is no signal that would tell you otherwise. Affiliate partners hit the same problem from the other direction: their sales stop being attributed, and they escalate.
The dates that matter
| Date | What happened / happens |
|---|---|
| August 28, 2025 | The Additional scripts box became view-only. You can read it but no longer edit it. |
| June 30, 2026 | A separate deadline, often confused with this one: Shopify Scripts (the Script Editor app for discount, shipping and payment rules) stopped executing. See what happened to Shopify Scripts. |
| August 26, 2026 | The deadline for non-Plus stores to upgrade their Thank you and Order status pages. Miss it and Shopify upgrades them for you — removing the Additional Scripts customizations in the process. |
| Any time you pause your store | Pausing also triggers the automatic upgrade. Shopify states this cannot be reverted, even after unpausing. |
Note the gap between the first and last row: the box has been frozen for nearly a year, so a snippet added before August 2025 has been sitting there untouched and unreviewed ever since. That is why reading the box is worth doing even if you are confident it is empty.
What can be moved, and what genuinely needs a developer
Additional Scripts is being replaced by two different mechanisms, not one. Tracking moves to web pixels, which run in a sandbox and receive order events. Anything visual moves to blocks on the new pages. A snippet that did both has to be split in two, and a snippet that manipulated the page directly has no equivalent at all — pixels cannot touch the page.
| What is in your box | Verdict | Why |
|---|---|---|
| Conversion pixels (Google Ads, Meta, TikTok, Pinterest) | Moves | Standard purchase-event tracking maps cleanly onto a web pixel. |
| Google Analytics / GA4 snippets | Moves | Usually already duplicated by Shopify's own GA4 integration - check before rebuilding. |
| Microsoft Clarity, Hotjar and similar session tools | Moves | Loader snippets become a pixel; nothing about them was thank-you-page specific. |
| Affiliate and referral network tags | Moves | Order value, order id and currency are all available to a pixel. |
| Google Customer Reviews opt-in | Partly | The opt-in survey needs Shopify's own integration or an app - a pasted snippet will not come back. |
| Custom text, banners or upsells drawn on the page | Needs work | Not tracking at all. Rebuilds as a block on the new page, not as a pixel. |
| Scripts that read the DOM or rewrite the page | Needs a developer | Web pixels run in a sandbox and cannot touch the page. There is no direct equivalent. |
| Authentication or order-lookup snippets | Needs a developer | Shopify names these explicitly as incompatible. Plan a different mechanism. |
Be sceptical of anything — app or agency — that tells you all of it can be moved automatically. The bottom two rows of that table cannot be, and an honest answer about them is worth more than an optimistic one you discover was wrong in September.
If you would rather not read the box yourself
We build Scriptly, a Shopify app, so treat this section as what it is. The check above is free and takes two minutes, and if you do it yourself you have got the whole value of this page — that is genuinely fine with us.
What the app adds is the reading step. You paste the contents of your Additional Scripts box in, and it tells you line by line what each snippet is, which of them it can rebuild as a web pixel for you, and which ones need a person. It says “this one needs a developer” where that is true rather than pretending otherwise, because a migration you believe is finished when it is not is worse than one you know is outstanding.
Questions merchants actually ask about this
What is the August 26, 2026 Shopify deadline?
It is the deadline for stores on a non-Plus Shopify plan to upgrade their Thank you and Order status pages to the new versions. Shopify's own guide states: "If you don't upgrade your pages again before August 26, 2026, then your Thank you and Order status pages will be auto-upgraded to the new pages." The auto-upgrade removes customizations made through Additional Scripts.
Does this affect me if I never used Shopify Scripts?
Yes, and this is the part most merchants get wrong. Shopify Scripts (the Script Editor app for discounts, shipping and payment rules) is a separate thing that ended on June 30, 2026. Additional Scripts is just a text box in your checkout settings. If anyone ever pasted a tracking snippet into it - a conversion pixel, an affiliate tag, a review widget - you are affected even if you never wrote a single Script.
Why can't I edit my additional scripts anymore?
Because Shopify froze the box a year ago. From their guide: "As of August 28, 2025, the additional scripts section in the Checkout settings is view-only. You can no longer manually edit your additional scripts." You can still read what is in there, which is exactly what you should do.
Will anything show an error when it breaks?
No. That is the expensive part. Orders keep coming in exactly as before; your ad platforms simply stop being told about them. Conversions in Google Ads or Meta drop toward zero while real sales continue, and the natural conclusion is that the campaigns stopped working - so merchants switch off ads that were fine.
What replaces Additional Scripts?
Two different mechanisms, depending on what the snippet did. Tracking and analytics move to web pixels (app pixels for customer event tracking). Visual and functional changes to the pages move to blocks on the new Thank you and Order status pages. A snippet that did both has to be split.
Can I undo the auto-upgrade if it goes wrong?
Not reliably. Shopify notes that pausing a store also triggers the automatic upgrade, and that "This upgrade can't be reverted even after unpausing your store." Treat the upgrade as one-way and take a copy of your Additional Scripts box before the date, not after.
What should I do today if I only have five minutes?
Open Settings, then Checkout, then the Order status page section, and find the Additional scripts box. Copy everything in it into a note or a document. That text is the complete list of what breaks on August 26, and once the pages are auto-upgraded it is much harder to recover.