---
title: "Update subscription bundle details"
method: POST
path: "/2026-04/bundle/transaction/update"
---

# Update subscription bundle details

`POST /2026-04/bundle/transaction/update`

## Request

- Base URL: `https://api.loopsubscriptions.com/storefront`
- URL: `https://api.loopsubscriptions.com/storefront/2026-04/bundle/transaction/update`
- Auth: API key in header `Authorization`

## Request body

- object
  - `id` string, required: Loop's transactionId used to retrieve the details of specific bundle
  - `items` object[]: Array of all the productVariantId and their quantity part of the updated bundle content
    - `productVariantShopifyId` integer: Shopify ID of the product variant added in the bundle
    - `quantity` integer: Quantity of the product variant present in the bundle
  - `discountId` integer: Loop's discountId for the discount eligible based on the updated bundle content
  - `boxSizeId` integer: Loop's boxSizeId based on the updated bundle content

## Response `200`

## Changes

- **2026-11-03** `1ff6a5700816`: 1 info
  - endpoint added

[Operation history](https://skmtc.dev/loopwork/apis/storefront-api/changes/2026-04/bundle/transaction/update/post.md)

---

[API](https://skmtc.dev/loopwork/apis/storefront-api.md) - [All operations](https://skmtc.dev/loopwork/apis/storefront-api/llms.txt) - [OpenAPI document](https://skmtc.dev/loopwork/apis/storefront-api/revisions/1ff6a5700816?raw)