---
title: CartDiscountApplication - Storefront API
description: >
  Captures the intent of a discount source at the time it was applied to a cart.
  This includes the discount value, how it's allocated across entitled items,
  and which line types it targets.


  The actual discounted amounts on specific cart lines are represented by
  [`CartDiscountAllocation`](/docs/api/storefront/2026-01/interfaces/CartDiscountAllocation)
  objects, which reference this application.
api_version: 2026-01
api_name: storefront
type: object
api_type: graphql
source_url:
  html: >-
    https://shopify.dev/docs/api/storefront/latest/objects/CartDiscountApplication
  md: >-
    https://shopify.dev/docs/api/storefront/latest/objects/CartDiscountApplication.md
---

# Cart​Discount​Application

object

Captures the intent of a discount source at the time it was applied to a cart. This includes the discount value, how it's allocated across entitled items, and which line types it targets.

The actual discounted amounts on specific cart lines are represented by [`CartDiscountAllocation`](https://shopify.dev/docs/api/storefront/2026-01/interfaces/CartDiscountAllocation) objects, which reference this application.

## Fields

* allocation​Method

  [Discount​Application​Allocation​Method!](https://shopify.dev/docs/api/storefront/latest/enums/DiscountApplicationAllocationMethod)

  non-null

  The method by which the discount's value is allocated to its entitled items.

* target​Selection

  [Discount​Application​Target​Selection!](https://shopify.dev/docs/api/storefront/latest/enums/DiscountApplicationTargetSelection)

  non-null

  Which lines of targetType that the discount is allocated over.

* target​Type

  [Discount​Application​Target​Type!](https://shopify.dev/docs/api/storefront/latest/enums/DiscountApplicationTargetType)

  non-null

  The type of line that the discount is applicable towards.

* value

  [Pricing​Value!](https://shopify.dev/docs/api/storefront/latest/unions/PricingValue)

  non-null

  The value of the discount application.

***

## Map

### Fields with this object

* [CartAutomaticDiscountAllocation.discountApplication](https://shopify.dev/docs/api/storefront/latest/objects/CartAutomaticDiscountAllocation#field-CartAutomaticDiscountAllocation.fields.discountApplication)
* [CartCodeDiscountAllocation.discountApplication](https://shopify.dev/docs/api/storefront/latest/objects/CartCodeDiscountAllocation#field-CartCodeDiscountAllocation.fields.discountApplication)
* [CartCustomDiscountAllocation.discountApplication](https://shopify.dev/docs/api/storefront/latest/objects/CartCustomDiscountAllocation#field-CartCustomDiscountAllocation.fields.discountApplication)
* [CartDiscountAllocation.discountApplication](https://shopify.dev/docs/api/storefront/latest/interfaces/CartDiscountAllocation#fields-discountApplication)