Checkout, Payments & Conversion
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Common Questions
Does the checkout.liquid shutdown affect stores on every Shopify plan, or only Shopify Plus stores?
The checkout.liquid shutdown itself hit Shopify Plus only, because checkout.liquid was a Plus feature. Plus lost the information, shipping and payment steps on 13 August 2024 and the thank you and order status pages on 28 August 2025. Every other plan was hit by a different date: script tags on the order status page stopped running 26 August 2026.
Why did Shopify start forcing automatic Checkout Extensibility upgrades starting January 2026 instead of leaving it opt-in indefinitely?
Shopify began auto-upgrading checkouts on 6 January 2025, not January 2026. The programme applied to Shopify Plus stores still running checkout.liquid on the information, shipping and payment pages, with 30 days of email notice before each upgrade. Shopify's stated reason is fraud control: unsandboxed checkout code makes risk assessment unreliable, so affected stores lost fraud indicators in the admin.
What does a Checkout Extensibility migration actually cost for a mid-market Shopify Plus store with 5-10 custom checkout integrations?
No published price exists for a Checkout Extensibility migration, because the work is priced per integration, not per store. Deploi's own decision record puts a full upgrade programme at $20,000 to $75,000 end to end over 8 to 14 weeks, with most landing in the $25,000 to $75,000 band (Deploi estimate, illustrative, September 2026). Integration count drives the number.
Do we need to budget for a tracking-app plan upgrade (e.g., to a server-side tier) at the same time we migrate to Checkout Extensibility?
A tracking-app upgrade belongs in the same budget cycle only when your purchase tracking lives in the additional scripts box. The new thank you and order status pages accept app pixels and web pixels only, so a hardcoded GA4 or Meta tag has no home. Elevar, now sold as Audiense Online, starts at $225 per month for 2,000 orders (Audiense, September 2026).
Why do some Shopify Plus merchants report their Checkout Extensibility migration went smoothly while others describe it as their worst platform experience of the year?
Migration difficulty tracks one variable: how many of your checkout customizations depend on a third party's release schedule. Shopify's own developer docs name the cause, stating that apps which had not rebuilt their script-tag functionality as UI extensions or web pixels were "blocking both Plus and non-Plus merchants from upgrading" (shopify.dev, September 2026). Stores with no app dependency audited clean in days.