---
title: "Shopify Unchanged cart operations no longer trigger carts/update webhooks: 2026-10-12 | Harbyn"
description: "Shopify Unchanged cart operations no longer trigger carts/update webhooks, announced Oct 12, 2026."
canonical: "https://harbyn.com/changes/shopify/2026-10-12-cart-updates-that-result-in-no-changes-to-the-cart-no-longer-trigger-carts-updat"
last-updated: 2026-10-14
---

# Shopify Unchanged cart operations no longer trigger carts/update webhooks

Markdown version of <https://harbyn.com/changes/shopify/2026-10-12-cart-updates-that-result-in-no-changes-to-the-cart-no-longer-trigger-carts-updat>.

Behavior change - Shopify. low severity. In effect.

Cart operations that leave the cart unchanged no longer trigger a carts/update webhook. Apps receive one webhook for each cart change instead of one per request.

## Facts

| Fact | Value |
| --- | --- |
| Vendor | [Shopify](https://harbyn.com/vendors/shopify.md) |
| Kind | Behavior change |
| Severity | low |
| Status | In effect |
| Announced | Oct 12, 2026 |
| Added to Harbyn | Oct 14, 2026 |
| Lead time | No dated deadline |
| Symbols | `carts/update` |
| Vendor page | <https://shopify.dev/changelog/unchanged-carts-no-longer-trigger-carts-update-webhooks> |
| Review | Reviewed by a person, extracted by a model |

## Find it in your code

```sh
npx harbyn scan
```

This change names no identifier the scanner can match line by line, so the scan tells you whether your repository uses Shopify, from its packages and API hosts. Nothing leaves your machine.

## Sources

Where this event comes from: the page we read, when we read it, and the hash of that snapshot.

- <https://shopify.dev/changelog/feed.xml> (changelog, fetched 2026-10-14 17:17 UTC, sha256 `353da6687b97306b8baf8a36ee128554514eed9c96b654158cf889849cf444e1`)

## Related changes

### More from Shopify

- [Global Catalog REST API stops serving traffic on November 2, 2026](https://harbyn.com/changes/shopify/2026-10-09-global-catalog-rest-api-stops-serving-traffic-on-november-2-2026.md) (Retirement, effective Nov 2, 2026)
- [Checkout footer visibility applies only to merchant-configurable content](https://harbyn.com/changes/shopify/2026-10-15-checkout-footer-visibility-now-applies-to-merchant-configurable-content.md) (Behavior change, announced Oct 15, 2026)
- [Product view events include currency](https://harbyn.com/changes/shopify/2026-10-08-hydrogen-developer-preview-update-october-8-2026.md) (Behavior change, announced Oct 8, 2026)
- [owner\_type required on metafield declarations in Checkout and Customer Account UI extensions from API version 2027-01](https://harbyn.com/changes/shopify/2026-10-08-new-owner-type-field-for-metafield-declarations-in-checkout-and-customer-acc-2.md) (Breaking change, announced Oct 8, 2026)

### Changes at other vendors

- [Amazon Selling Partner API: ORDER\_CHANGE notifications add PreFulfillmentStatusChange for Amazon Autos](https://harbyn.com/changes/amazon-sp-api/2026-10-14-sp-api-updates-new-listings-items-api-ivp-values-in-eu5-jp-and-ca-stores-oct-3.md) (effective Oct 28, 2026)
- [BigCommerce: 301 redirects will apply only to storefront channels](https://harbyn.com/changes/bigcommerce/2026-10-07-301-redirects-now-apply-to-storefront-channels-only.md) (effective Nov 10, 2026)
- [GitHub: Secret scanning audit log business field changes to enterprise slug](https://harbyn.com/changes/github/2026-10-20-updates-to-github-secret-scanning-7.md) (effective Nov 12, 2026)
- [Jira / Atlassian Cloud: New IP address ranges in use from January 1, 2027](https://harbyn.com/changes/atlassian-jira/2026-10-16-atlassian-cloud-adds-new-ip-address-ranges.md) (effective Jan 1, 2027)

[All upcoming deadlines](https://harbyn.com/deadlines.md)