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Shopify API changes
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Cart updates that result in no changes to the cart no longer trigger carts/update webhooks

doc:019fb619-9b4a-74ac-a83e-3ffa98844fb4::feed/https://shopify.dev/changelog/unchanged-carts-no-longer-trigger-carts-update-webhooks
Product
Shopify Admin GraphQL API
Source
Feed
Change kind
Feed Entry
Detected
Last updated

Deterministic evidence

Before / after

Extracted from Shopify's published contract. Open the source ↗

−1+81 change

1 / 1
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{
"content_hash": "f73ca9efeecd373afa41dbc90ab0f88c41542fedf70df8563299e5c2f1af3bd1",
"excerpt": "Cart operations that leave the cart unchanged, for example, resubmitting the same values a cart already has, no longer trigger a carts/update webhook. Shopify sends a webhook every time a cart's contents or properties change. Previously, every cart operation produced a carts/update webhook. This change removes the duplicate notifications, and apps receive one carts/update for each change to a cart instead of one per request. Learn more Cart webhooks Ajax Cart API",
"identity": "https://shopify.dev/changelog/unchanged-carts-no-longer-trigger-carts-update-webhooks",
"link": "https://shopify.dev/changelog/unchanged-carts-no-longer-trigger-carts-update-webhooks",
"published_at": "2026-10-12T16:00:00Z",
"title": "Cart updates that result in no changes to the cart no longer trigger carts/update webhooks"
}

Interpreted documentation change

What the vendor announced

The evidence describes a change where cart updates that do not alter cart contents or properties no longer trigger carts/update webhooks, reducing duplicate notifications. Previously every cart operation produced a carts/update webhook even if nothing changed; now Shopify sends a webhook only when a cart actually changes, so apps receive one carts/update webhook per actual change rather than per request.

Cart updates that result in no changes to the cart no longer trigger carts/update webhooks Cart operations that leave the cart unchanged, for example, resubmitting the same values a cart already has, no longer trigger a carts/update webhook. Shopify sends a webhook every time a cart's contents or properties change. Previously, every cart operation produced a carts/update webhook. This change removes the duplicate notifications, and apps receive one carts/update for each change to a cart instead of one per request. Learn more Cart webhooks Ajax Cart API

Vendor source ↗

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Multi-source correlation

Other Shopify findings correlated with this change across sources.

  1. Info
    SDK release 15.0.1sdk:npm/@shopify/shopify-api@15.0.1
    Shopify Admin GraphQL API
  2. Deprecation
    SDK version 13.0.0 yankedsdk:npm/@shopify/shopify-api@13.0.0
    Shopify Admin GraphQL API
  3. Info
    SDK release 15.0.1sdk:npm/@shopify/shopify-api@15.0.1
    Shopify Admin GraphQL API