An ordered list of stacked discount applications.

The discount_applications property includes 3 types: discount_code, manual, and script. All 3 types share a common structure and have some type specific attributes.

allocation_method: The method by which the discount application value has been allocated to entitled lines. Valid values:
- across: The value is spread across all entitled lines.
- each: The value is applied onto every entitled line.
- one: The value is applied onto a single line.
code: The discount code that was used to apply the discount. Available only for discount code applications.
description: The description of the discount application, as defined by the merchant or the Shopify Script. Available only for manual and script discount applications.
target_selection: The lines on the order, of the type defined by target_type, that the discount is allocated over. Valid values:
- all: The discount is allocated onto all lines,
- entitled: The discount is allocated only onto lines it is entitled for.
- explicit: The discount is allocated onto explicitly selected lines.
target_type: The type of line on the order that the discount is applicable on. Valid values:
- line_item: The discount applies to line items.
- shipping_line: The discount applies to shipping lines.
title: The title of the discount application, as defined by the merchant. Available only for manual discount applications.
type: The discount application type. Valid values:
- automatic: The discount was applied automatically, such as by a Buy X Get Y automatic discount.
- discount_code: The discount was applied by a discount code.
- manual: The discount was manually applied by the merchant (for example, by using an app or creating a draft order).
- script: The discount was applied by a Shopify Script.
value: The value of the discount application as a decimal. This represents the intention of the discount application. For example, if the intent was to apply a 20% discount, then the value will be 20.0. If the intent was to apply a $15 discount, then the value will be 15.0.
value_type: The type of the value. Valid values:
- fixed_amount: A fixed amount discount value in the currency of the order.
- percentage: A percentage discount value.