---
title: CartAttributesUpdatePayload - Storefront API
description: Return type for `cartAttributesUpdate` mutation.
api_version: 2025-10
api_name: storefront
type: payload
api_type: graphql
source_url:
  html: https://shopify.dev/docs/api/storefront/latest/payloads/cartattributesupdatepayload
  md: https://shopify.dev/docs/api/storefront/latest/payloads/cartattributesupdatepayload.md
---

# Cart​Attributes​Update​Payload

payload

Return type for `cartAttributesUpdate` mutation.

## Fields

* cart

  [Cart](https://shopify.dev/docs/api/storefront/latest/objects/Cart)

  The updated cart.

* user​Errors

  [\[Cart​User​Error!\]!](https://shopify.dev/docs/api/storefront/latest/objects/CartUserError)

  non-null

  The list of errors that occurred from executing the mutation.

* warnings

  [\[Cart​Warning!\]!](https://shopify.dev/docs/api/storefront/latest/objects/CartWarning)

  non-null

  A list of warnings that occurred during the mutation.

***

## Mutations with this payload

* [cart​Attributes​Update](https://shopify.dev/docs/api/storefront/latest/mutations/cartAttributesUpdate)

  mutation

  Updates the attributes on a cart.

  * attributes

    [\[Attribute​Input!\]!](https://shopify.dev/docs/api/storefront/latest/input-objects/AttributeInput)

    required

    ### Arguments

    An array of key-value pairs that contains additional information about the cart.

    The input must not contain more than `250` values.

  * cart​Id

    [ID!](https://shopify.dev/docs/api/storefront/latest/scalars/ID)

    required

    The ID of the cart.

  ***

***

## Map

### Mutations with this payload

* [cart​Attributes​Update](https://shopify.dev/docs/api/storefront/latest/types/cartAttributesUpdate)