---
title: "Change subscription plan"
method: POST
path: "/2026-04/subscription/{subscriptionId}/subscriptionPlan/update"
---

# Change subscription plan

`POST /2026-04/subscription/{subscriptionId}/subscriptionPlan/update`

## Request

- Base URL: `https://api.loopsubscriptions.com/admin`
- URL: `https://api.loopsubscriptions.com/admin/2026-04/subscription/{subscriptionId}/subscriptionPlan/update`
- Auth: API key in header `X-Loop-Token`

This endpoint allows you to update the subscription plan for a subscription contract.

## Path parameters

- `subscriptionId` integer, required

## Request body

- object
  - `sellingPlanShopifyId` integer, required: Shopify ID of the new frequency
  - `nextBillingDateEpoch` integer, required: Epoch of the next billing date for the subscription

## Response `200`

Subscription plan updated successfully

- object
  - `success` boolean
  - `message` string
  - `data` unknown
  - `code` string

---

[API](https://skmtc.dev/loopwork/apis/loop-admin.md) - [All operations](https://skmtc.dev/loopwork/apis/loop-admin/llms.txt) - [OpenAPI document](https://skmtc.dev/loopwork/apis/loop-admin/revisions/1eaf81bcb1ea?raw)