The Shopify Scripts deadline has passed. This is now a review of what a store actually runs and which business rules still work, rather than an upcoming-deadline warning.
Inventory the current behaviour
Shopify says Scripts were deprecated on 30 June 2026 and published Scripts were deactivated. Identify the old discount, delivery and payment customisations and confirm their actual replacements. Shopify Scripts deprecation notice.
Review current Shopify admin upgrade notices and the installed apps responsible for checkout, Thank you and Order status behaviour. A migration date does not prove that tracking or every custom rule was preserved.
Map each requirement to the supported surface
- UI extensions provide supported interface elements at eligible targets.
- Functions provide eligible commerce logic.
- Pixels have a separate role in customer-event measurement.
- Existing app customisations need their provider's current compatibility guidance.
Confirm the plan, API and version for each requirement. Information, shipping and payment-step UI extensions are Plus-only; other extension surfaces differ. Checkout UI extension eligibility.
Check assumptions about Functions
Do not apply a universal millisecond execution budget or assume external data is always impossible. Shopify documents network access for specific functions and eligible arrangements, with restrictions and enablement requirements. Functions network access.
Agree acceptance and release approval
Use a suitable test setup with representative products, customers, discounts, destinations and failure states. Check the authorised payment scenarios, the order received by operations and the relevant measurement events. The store owner approves live checkout changes and the rollback approach.
A completed checklist is delivery evidence. Conversion and revenue outcomes require separate baselines and comparison periods. No universal migration price, retainer or automated weekly checkout improvement is promised.
Prepare a scope with Shopify development, the Functions planning guide and the UI extension review.
Sources and review
Guidance checked on 7 October 2026. Features and commercial terms can change; confirm availability for your own account and scope. These planning checks are recommendations and do not replace an assessment of the actual implementation.