--- title: >- Cart change REST API now supports changing selling plan - Shopify developer changelog description: >- Shopify’s developer changelog documents all changes to Shopify’s platform. Find the latest news and learn about new platform opportunities. source_url: html: >- https://shopify.dev/changelog/cart-change-rest-api-now-supports-changing-selling-plan md: >- https://shopify.dev/changelog/cart-change-rest-api-now-supports-changing-selling-plan.md metadata: effectiveApiVersion: '' affectedApi: [] primaryTag: displayName: API handle: api secondaryTag: displayName: Update handle: update indicatesActionRequired: false createdAt: '2022-02-14T14:25:55-05:00' postedAt: '2022-02-14T00:00:00-05:00' updatedAt: '2024-02-02T10:05:04-05:00' effectiveAt: '2022-02-14T00:00:00-05:00' --- February 14, 2022 Tags: * API # Cart change REST API now supports changing selling plan It’s now possible to upsell subscriptions in cart in the online store. We added a new field, `selling_plan`, to the [`/cart/change.js`](https://shopify.dev/api/ajax/reference/cart#post-cart-change-js) endpoint in the AJAX REST API to support adding, updating, and removing the selling plan. Learn more about supporting subcriptions on [shopify.dev](https://shopify.dev/themes/pricing-payments/subscriptions/support-subscriptions).