---
title: CartWarning - Storefront API
description: A warning that occurred during a cart mutation.
api_version: 2024-10
api_name: storefront
type: object
api_type: graphql
source_url:
  html: 'https://shopify.dev/docs/api/storefront/2024-10/objects/CartWarning'
  md: 'https://shopify.dev/docs/api/storefront/2024-10/objects/CartWarning.txt'
---

# Cart​Warning

object

A warning that occurred during a cart mutation.

## Fields

* code

  [Cart​Warning​Code!](https://shopify.dev/docs/api/storefront/2024-10/enums/CartWarningCode)

  non-null

  The code of the warning.

* message

  [String!](https://shopify.dev/docs/api/storefront/2024-10/scalars/String)

  non-null

  The message text of the warning.

* target

  [ID!](https://shopify.dev/docs/api/storefront/2024-10/scalars/ID)

  non-null

  The target of the warning.

***

## Map

No referencing types

***

## Mutations

* [cart​Attributes​Update](https://shopify.dev/docs/api/storefront/2024-10/mutations/cartAttributesUpdate)

  mutation

  Updates the attributes on a cart.

* [cart​Buyer​Identity​Update](https://shopify.dev/docs/api/storefront/2024-10/mutations/cartBuyerIdentityUpdate)

  mutation

  Updates customer information associated with a cart. Buyer identity is used to determine [international pricing](https://shopify.dev/custom-storefronts/internationalization/international-pricing) and should match the customer's shipping address.

* [cart​Create](https://shopify.dev/docs/api/storefront/2024-10/mutations/cartCreate)

  mutation

  Creates a new cart.

* [cart​Discount​Codes​Update](https://shopify.dev/docs/api/storefront/2024-10/mutations/cartDiscountCodesUpdate)

  mutation

  Updates the discount codes applied to the cart.

* [cart​Gift​Card​Codes​Update](https://shopify.dev/docs/api/storefront/2024-10/mutations/cartGiftCardCodesUpdate)

  mutation

  Updates the gift card codes applied to the cart.

* [cart​Lines​Add](https://shopify.dev/docs/api/storefront/2024-10/mutations/cartLinesAdd)

  mutation

  Adds a merchandise line to the cart.

* [cart​Lines​Remove](https://shopify.dev/docs/api/storefront/2024-10/mutations/cartLinesRemove)

  mutation

  Removes one or more merchandise lines from the cart.

* [cart​Lines​Update](https://shopify.dev/docs/api/storefront/2024-10/mutations/cartLinesUpdate)

  mutation

  Updates one or more merchandise lines on a cart.

* [cart​Note​Update](https://shopify.dev/docs/api/storefront/2024-10/mutations/cartNoteUpdate)

  mutation

  Updates the note on the cart.

* [cart​Selected​Delivery​Options​Update](https://shopify.dev/docs/api/storefront/2024-10/mutations/cartSelectedDeliveryOptionsUpdate)

  mutation

  Update the selected delivery options for a delivery group.

***

## <\~> CartWarning Mutations

### Mutated by

* <\~>[cart​Attributes​Update](https://shopify.dev/docs/api/storefront/2024-10/mutations/cartAttributesUpdate)
* <\~>[cart​Buyer​Identity​Update](https://shopify.dev/docs/api/storefront/2024-10/mutations/cartBuyerIdentityUpdate)
* <\~>[cart​Create](https://shopify.dev/docs/api/storefront/2024-10/mutations/cartCreate)
* <\~>[cart​Discount​Codes​Update](https://shopify.dev/docs/api/storefront/2024-10/mutations/cartDiscountCodesUpdate)
* <\~>[cart​Gift​Card​Codes​Update](https://shopify.dev/docs/api/storefront/2024-10/mutations/cartGiftCardCodesUpdate)
* <\~>[cart​Lines​Add](https://shopify.dev/docs/api/storefront/2024-10/mutations/cartLinesAdd)
* <\~>[cart​Lines​Remove](https://shopify.dev/docs/api/storefront/2024-10/mutations/cartLinesRemove)
* <\~>[cart​Lines​Update](https://shopify.dev/docs/api/storefront/2024-10/mutations/cartLinesUpdate)
* <\~>[cart​Note​Update](https://shopify.dev/docs/api/storefront/2024-10/mutations/cartNoteUpdate)
* <\~>[cart​Selected​Delivery​Options​Update](https://shopify.dev/docs/api/storefront/2024-10/mutations/cartSelectedDeliveryOptionsUpdate)