{
 "id": "shopify-732182ba92",
 "platform": "shopify",
 "title": "Cart mutations reject unconfirmed writes in POS UI extensions 2026-10",
 "summary": "In POS UI extensions API version 2026-10 , Cart API mutations reject when Shopify POS doesn't confirm that the cart changed. In earlier versions these mutations resolve whether or not POS applied the write.",
 "categories": [
  "breaking_change"
 ],
 "tags": [
  "2026-10",
  "API",
  "Action Required",
  "Breaking API Change",
  "POS Extensions"
 ],
 "published_date": "2026-10-07",
 "effective_date": null,
 "effective_date_precision": null,
 "source_url": "https://shopify.dev/changelog/cart-mutations-reject-unconfirmed-writes-in-pos-ui-extensions-2026-10",
 "source_name": "Shopify developer changelog",
 "fetched_at": "2026-10-17T03:44:00+00:00",
 "collector": "shopify/changelog",
 "first_seen": "2026-10-17T01:05:46+00:00",
 "in_source": true,
 "last_seen_in_source": "2026-10-17T03:44:00+00:00",
 "upcoming": false,
 "url": "https://adstackwatch.com/changes/shopify-732182ba92/"
}