Platform changes › Shopify › Deadlines
Explicit dates only
Only reviewed changes whose official source states a deadline or version boundary appear here.
Payout Behavior · confirmed
Divide intended line-level fixed discounts by quantity before adopting 2026-07, and test rounding so the final discount matches policy.
Official source ↗Deprecation · confirmed
Before adopting Customer Account API 2026-10, remove affected queries and migrate checkout-state workflows to supported cart or order flows.
Official source ↗Deprecation · confirmed
Move cart calls to the UCP endpoint, send complete cart state for update_cart, and add the required UCP profile and idempotency metadata.
Official source ↗Api Change · confirmed
Before adopting Admin API 2026-10, replace priceRule title and code reads in draft-order mutation response handling.
Official source ↗Deprecation · confirmed
Remove branches that depend on this error before adopting 2026-10 and confirm location validation still matches the intended fulfillment policy.
Official source ↗Deadline · confirmed
Move buyer-facing return and subscription authentication to Customer Account API and validate the full self-service flow before December 1.
Official source ↗Historical context