Shopify shuts off legacy checkout scripts
August 26, 2026.
On that date, non-Plus stores lose the legacy Thank you and Order status pages, checkout
ScriptTags, and the order-status Additional scripts box.
(Shopify Scripts on Plus already stopped June 30, 2026.) CheckoutProof
scans your store, scores your readiness, and shows exactly what breaks — and what to run instead.
Now on the Shopify App Store. Free plan available — Pro from $29/mo with a 7-day trial. Reads only store config and public store pages; we never touch your customer data.
The deadline is real, and it's specific
Shopify is retiring checkout customizations that run outside its new extensibility model. If any of your tracking, upsells, or order-status tweaks still live in the legacy surfaces, they stop working on your store's shutoff date. CheckoutProof finds them before your customers do.
Checks your upgrade status
We read your checkout profile to see whether the new Thank you and Order status pages are already live — the single biggest signal of where your store stands.
Classifies your ScriptTags
Every ScriptTag visible to the app is classified by where it runs and what breaks when the legacy surfaces go away — so nothing critical disappears silently.
Recognizes legacy trackers
We match the scripts rendered into your public storefront HTML against a recognizer map of known trackers — GA/GTM, Meta, Klaviyo, TikTok and more — and name each one.
Maps each finding to its fix
Every finding is mapped to its platform-approved replacement — a Web Pixel, a Checkout UI Extension, or a Function — with an effort estimate so you can plan the work.
From at-risk to ready, in three steps
Everything runs inside Shopify. Install, scan, and get a migration plan — no developer needed to see where you stand.
Scan
Install CheckoutProof and run a scan. It reads your checkout upgrade status, your ScriptTags, and your public storefront HTML, then scores your readiness 0–100 with a countdown to your store's shutoff date.
Plan
Work the findings worst-first. Each is mapped to its approved replacement — Web Pixel, Checkout UI Extension, or Function — with an effort estimate, plus a guided manual checklist for surfaces no API can read.
Monitor
Pro re-scans your store every week, so a newly added app or script can't quietly reintroduce a legacy dependency before the deadline. Then prove it with a post-migration test order.
What CheckoutProof looks at
Three sources, one readiness score — plus a manual checklist for the surfaces no app can see.
Honest about what we can and can't see
Shopify's ScriptTag API is app-scoped, so no app can see every script on your store. That's exactly why the report includes a manual checklist. CheckoutProof is a migration-planning tool — the real proof is your post-migration test order.
What CheckoutProof does
- Reads your checkout profile upgrade statusWhether the new Thank you / Order status pages are live
- Classifies the ScriptTags visible to the appBy where they run and what breaks at shutoff
- Matches storefront scripts to a recognizer mapGA/GTM, Meta, Klaviyo, TikTok and other known trackers
- A 0–100 readiness score with a shutoff countdownPlus each finding mapped to its approved replacement
- A guided manual checklist (Pro re-scans weekly)For the surfaces no API can read
What it isn't
- A guarantee it caught every scriptThe ScriptTag API is app-scoped — that's why there's a checklist
- A one-click migration that rewrites your checkoutIt plans the work; you (or a dev) implement the replacements
- A substitute for a real test orderThe proof is placing a post-migration order and verifying it
- Anything that touches customer dataReads only store config + public storefront HTML
Simple pricing
Start free with full results. Upgrade when you want unlimited scans and weekly monitoring through the deadline.
- 3 scans per 30 days
- Full 0–100 readiness score
- Countdown to your shutoff date
- Every finding mapped to its fix
- Everything in Free
- Unlimited scans
- Automatic weekly monitoring
- Full migration detail + manual checklist
- 7-day free trial
Know where your checkout stands before August 26
Score your readiness, see exactly what breaks, and get the migration plan to fix it.
Get CheckoutProof — freeNow on the Shopify App Store.
CheckoutProof helps you plan your migration off Shopify's legacy checkout surfaces before they're shut off. It reads only store configuration metadata and public storefront HTML — no orders, no customers, no Protected Customer Data. Because Shopify's ScriptTag API is app-scoped, no app can see every script on your store; the report includes a manual checklist for that reason, and the definitive proof is a successful post-migration test order. See our privacy policy.