The run target calculates and applies discounts to cart lines, orders, and shipping based on the provided cart context and discount configuration, including metafields. When your Function is executed, Shopify provides the cart context as input to the run target, including details about cart lines, prices, quantities, buyer identity, and optionally fetch results from external providers.

In this tutorial, you'll use Shopify Functions to create a new type of discount that does three things: - Reduces the price of a cart line by 20% - Discounts the order subtotal by 10% - Provides free shipping After creating the discount, you can test it out in your store.

October 29, 2025 - Shopify Discount Functions are server-side, low latency scripts (product, order, or shipping scopes) that let developers implement advanced promotions (tiered pricing, BOGO, market-specific rules) and run natively in checkout.

Create any automatic and manual discount you can imagine.

After merchants install the app, they can create discounts using these custom discount types. Shopify executes the Function to calculate discounts in real-time when buyers add products to their cart.

Create discount codes and set up automatic discounts to promote products.

Discounts created by Discount Functions are automatically eligible on different sales channels, including Online Store and POS. Discount Functions can not be excluded from POS. Stores on any plan can use public apps that are distributed through the Shopify App Store and contain functions.

A single Function processes one discount (either code-based or automatic), but can apply savings across three discount classes: product, order, and shipping. For example, one discount can simultaneously reduce both order total and delivery costs.

The Discount API now allows apps to generate product, order, and shipping discounts—all powered by a single Discount Code. Merchants can combine multiple discount effects, reduce the number of Functions needed, and unlock more flexible promotions.

If your store is on the Shopify Plus plan, then consider using Checkout Blocks. You can also use a compatible third-party discounts app, or create your own custom app, to offer your customers a single automatic discount or a single discount code that applies more than one discount saving to an order.

Every Possible Discount is an automatic discount app for Shopify. Easily set up discounts such as BOGO offers, tiered pricing, bundles, gifts, volume discounts & discount codes. Create any discount that best matches your promotion strategy & ...

This app is a guide for adding discount function extensions to a Shopify app. We have also provided some additional extensions to help you get started with other types of extensions.

Shopify Functions API - Javascript App for Discount - GitHub - ramdhanishivam/discount-function-app: Shopify Functions API - Javascript App for Discount

Depending on the type of function and what customization capabilities the app developer has added, the merchant can configure the function to meet their specific needs. Say you built a Shopify app that enables merchants to create discounts that automatically apply X% discount on the shipping rate of an order whenever the total cart value is above $Y.

Do you need to replace your scripts with functions? Do you want to write your own functions app but don't want to deal with deployments? With Function Lab, you can generate functions using our JSON editor. Available now: Automatic Discounts.

To refine the products or variants to which discounts should be applied, use the 'Discounted Item Qualifier'.

July 14, 2023 - The discount should only apply to one specific line item “A”, meaning that if there are 2 line items “A” in the cart, the discount will only apply to one line item “A”. ...

You can create amount off discounts that give your customers a fixed value or a percentage off the products in an order, but that don't apply to shipping costs. The discounts that you create display on the Discounts page of your Shopify admin.

The list of discounts specifies the money amount that's allocated to an item in a cart based on the associated discount. Shopify processes your response to determine how to calculate discounts on items in a cart.