Have your say in Community Polls: What was/is your greatest motivation to start your own business?
Our Partner & Developer boards on the community are moving to a brand new home: the .dev community forums! While you can still access past discussions here, for all your future app and storefront building questions, head over to the new forums.

Shipping Discount Function Not Running in Checkout

Solved

Shipping Discount Function Not Running in Checkout

minichimi
Shopify Partner
4 1 2

I've created a couple cart validation extensions with no issues, but when trying to test a Shipping Discount function, it will not run after entering Shipping details on Checkout pages. 

Steps to reproduce, create a new extension:

➜ dev-checkout git:(main) ✗ npm init @shopify/app@latest
➜ dev-checkout git:(main) ✗ shopify app generate extension

Before proceeding, your project needs to be associated with an app.

? Create this project as a new app on Shopify?
✔ Yes, create it as a new app

? App name:
✔ dev-checkout│ │
│ Using shopify.app.toml: │
│ │
│ • Org: xxx. │
│ • App: dev-checkout │
│ │
│ You can pass `--reset` to your command to reset your app configuration. │
│ │

? Type of extension?
✔ Discount shipping - Function

? Name your extension:
✔ shipping-discount

? What would you like to work in?
✔ JavaScript

Simple RunInput:

query RunInput {
  cart {
    buyerIdentity {
      email
      phone
    }
  }
}

Simple run.js:

/**
 * @typedef {import("../generated/api").RunInput} RunInput
 * @typedef {import("../generated/api").FunctionRunResult} FunctionRunResult
 */

/**
 * @type {FunctionRunResult}
 */
const EMPTY_DISCOUNT = {
  discounts: [],
};

/**
 * @param {RunInput} input
 * @returns {FunctionRunResult}
 */
export function run(input) {
  console.log("runnning shipping discount extension with input", input);
  return EMPTY_DISCOUNT;
};

Ran typegen, dev install, and then deploy, and no runs show under the extensions monitoring in the partner dashboard. 

Any idea what's wrong?

Found one other post with a similar issue https://community.shopify.com/c/extensions/shipping-discount-functions-is-not-running/m-p/2550792#M2...

Accepted Solution (1)

minichimi
Shopify Partner
4 1 2

This is an accepted solution.

Missed the part where you have to activate the discount using a GraphQL mutation, got it working 

View solution in original post

Reply 1 (1)

minichimi
Shopify Partner
4 1 2

This is an accepted solution.

Missed the part where you have to activate the discount using a GraphQL mutation, got it working