Checkout UI and Polaris: deprecation.
Checkout UI extensions using useBuyerJourneyIntercept
- Published
- Jul 2, 2026
- Effective
- Not published
- Deadline precision
- unknown
- Evidence
- official changelog
What the app team should do
Migrate enforceable rules to cart and checkout validation Functions; move discount rejection logic to the Discount Function API
How to plan the migration
No removal date is published; inventory current uses now and estimate migration scope
Suggested planning start: Aug 24, 2026
Verify against Shopify
Source last checked Aug 11, 2026. Patchquarter is independent from Shopify and preserves the official source as the authority.
Open official Shopify source ↗