---
title: CartDiscountCode - Storefront API
description: >
  A discount code applied to a
  [`Cart`](/docs/api/storefront/2026-01/objects/Cart). Discount codes are
  case-insensitive and can be added using the
  [`cartDiscountCodesUpdate`](/docs/api/storefront/2026-01/mutations/cartDiscountCodesUpdate)
  mutation.


  The
  [`applicable`](/docs/api/storefront/2026-01/objects/CartDiscountCode#field-CartDiscountCode.fields.applicable)
  field indicates whether the code applies to the cart's current contents, which
  might change as items are added or removed.
api_version: 2026-01
api_name: storefront
type: object
api_type: graphql
source_url:
  html: 'https://shopify.dev/docs/api/storefront/latest/objects/CartDiscountCode'
  md: 'https://shopify.dev/docs/api/storefront/latest/objects/CartDiscountCode.md'
---

# Cart​Discount​Code

object

A discount code applied to a [`Cart`](https://shopify.dev/docs/api/storefront/2026-01/objects/Cart). Discount codes are case-insensitive and can be added using the [`cartDiscountCodesUpdate`](https://shopify.dev/docs/api/storefront/2026-01/mutations/cartDiscountCodesUpdate) mutation.

The [`applicable`](https://shopify.dev/docs/api/storefront/2026-01/objects/CartDiscountCode#field-CartDiscountCode.fields.applicable) field indicates whether the code applies to the cart's current contents, which might change as items are added or removed.

## Fields

* applicable

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

  non-null

  Whether the discount code is applicable to the cart's current contents.

* code

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

  non-null

  The code for the discount.

***

## Map

### Fields with this object

* [Cart.discountCodes](https://shopify.dev/docs/api/storefront/latest/objects/Cart#field-Cart.fields.discountCodes)