---
title: >-
  New PRODUCT_UNAVAILABLE_IN_BUYER_LOCATION warning code in the Storefront API
  Cart - Shopify developer changelog
description: >-
  Shopify’s developer changelog documents all changes to Shopify’s platform.
  Find the latest news and learn about new platform opportunities.
source_url:
  html: >-
    https://shopify.dev/changelog/new-productunavailableinbuyerlocation-warning-code-in-the-storefront-api-cart
  md: >-
    https://shopify.dev/changelog/new-productunavailableinbuyerlocation-warning-code-in-the-storefront-api-cart.md
metadata:
  effectiveApiVersion: 2026-07
  affectedApi:
    - displayName: Storefront GraphQL API
      handle: storefront-graphql
  primaryTag:
    displayName: API
    handle: api
  secondaryTag:
    displayName: New
    handle: new
  indicatesActionRequired: false
  createdAt: '2026-04-22T16:03:07-04:00'
  postedAt: '2026-05-12T12:00:00-04:00'
  updatedAt: '2026-05-12T10:58:48-04:00'
  effectiveAt: '2026-07-01T12:00:00-04:00'
---

May 12, 2026

Tags:

* Storefront GraphQL API
* 2026-07

# New `PRODUCT_UNAVAILABLE_IN_BUYER_LOCATION` warning code in the Storefront API Cart

Starting with the 2026-07 version of the Storefront API, the [Cart](https://shopify.dev/docs/api/storefront/2026-07/objects/Cart) emits a [`PRODUCT_UNAVAILABLE_IN_BUYER_LOCATION`](https://shopify.dev/docs/api/storefront/2026-07/objects/CartWarning#field-CartWarning.fields.code.PRODUCT_UNAVAILABLE_IN_BUYER_LOCATION) warning when a [cart line](https://shopify.dev/docs/api/storefront/2026-07/objects/CartLine) contains a product that isn't available in the buyer's location.

Each affected cart line returns its own warning. The warning's target is set to the `CartLine` ID so you can map it back to the line in your UI.

For background on cart warnings and an example of handling them, refer to our docs on [cart warnings](https://shopify.dev/docs/storefronts/headless/building-with-the-storefront-api/cart/cart-warnings).