Is your checkout already broken?

On August 26, 2026 the legacy Thank-you and Order-status pages, checkout ScriptTags, and the “Additional scripts” box shut off for every non-Plus Shopify store. If you did not migrate, your tracking and customizations are already silent — and nothing errored to tell you. CheckoutProof scans your store, scores what still works, and hands you the exact migration plan: Web Pixels, Checkout UI Extensions, native integrations.

• Score your readiness. We read your checkout profile's upgrade status, app-visible ScriptTags, and your rendered storefront scripts — read-only, never your customers' data.
• See exactly what breaks. Every legacy script and un-upgraded page, classified by severity — with the platform-approved replacement and an effort estimate.
• Migrate and re-scan. Work the prioritized plan and the guided manual checklist, verify with a test order, and track your readiness score to 100.