---
title: BaseCartDiscountApplication - 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/2026-10/interfaces/CartDiscountAllocation)

  objects, which reference this application.
api_version: 2026-10
source_url:
  html: >-
    https://shopify.dev/docs/api/storefront/latest/interfaces/BaseCartDiscountApplication
  md: >-
    https://shopify.dev/docs/api/storefront/latest/interfaces/BaseCartDiscountApplication.md
api_name: storefront
api_type: graphql
type: interface
---

# Base​Cart​Discount​Application

interface

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/2026-10/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.

* total​Allocated​Amount

  [Money​V2!](https://shopify.dev/docs/api/storefront/latest/objects/MoneyV2)

  non-null

  The total amount allocated by this discount application across all entitled items.

* value

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

  non-null

  The value of the discount application.

***

##### Variables

```json
{
	"allocationMethod": "",
	"targetSelection": "",
	"targetType": "",
	"totalAllocatedAmount": "",
	"value": ""
}
```

##### Schema

```graphql
interface BaseCartDiscountApplication {
  allocationMethod: DiscountApplicationAllocationMethod!
  targetSelection: DiscountApplicationTargetSelection!
  targetType: DiscountApplicationTargetType!
  totalAllocatedAmount: MoneyV2!
  value: PricingValue!
}
```