---
title: >-
  POS UI Extensions - Cart API: Customer fields removed from subscribable hook -
  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/posts/pos-ui-extensions-cart-api-customer-fields-removed-from-subscribable-hook
  md: >-
    https://shopify.dev/changelog/posts/pos-ui-extensions-cart-api-customer-fields-removed-from-subscribable-hook.md
metadata:
  effectiveApiVersion: ''
  affectedApi:
    - displayName: POS Extensions
      handle: pos-extensions
  primaryTag:
    displayName: API
    handle: api
  secondaryTag:
    displayName: Breaking API Change
    handle: breaking-api-change
  indicatesActionRequired: true
  createdAt: '2025-04-20T21:08:10-04:00'
  postedAt: '2025-04-22T12:00:00-04:00'
  updatedAt: '2025-04-24T15:57:15-04:00'
  effectiveAt: '2025-04-21T12:00:00-04:00'
---

April 22, 2025

# POS UI Extensions - Cart API: Customer fields removed from `subscribable` hook

DateApril 22, 2025

Flags[Breaking API Change](https://shopify.dev/changelog?filter=breaking-api-change)[Action required](https://shopify.dev/changelog?action_required=true)

SurfacesAPI

Affected APIs[POS Extensions](https://shopify.dev/changelog?api_type=pos-extensions)

The POS UI Extensions Cart API has been updated, removing the `email`, `firstName`, `lastName`, and `note` Customer fields from the [`subscribable hook`](https://shopify.dev/docs/api/pos-ui-extensions/unstable/apis/cart-api#cartapi-propertydetail-subscribable). Any extension used in POS version 10.0.0 or higher, and any extension targeting API version 2025-01 or higher, won't have access to these fields.

To get this data, update your code to use the `customerId` to retrieve the customer record from the GraphQL Admin API. To do this, your extension must have the `read_customers permission` access scope.

To learn more, read the [POS UI Extensions](https://shopify.dev/docs/api/pos-ui-extensions) documentation.