---
title: "Changes to Create Checkout Session"
method: POST
path: "/v1/shops/{shopId}/checkout"
---

# Changes to Create Checkout Session

`POST /v1/shops/{shopId}/checkout`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 4 of 8 revisions.

- **2026-11-02** `ff0d59c98d7a`: 4 breaking, 5 warning, 47 info
- **2026-10-20** `000b5ef816e6`: 1 breaking, 3 info
- **2026-09-20** `b029c1ca97a8`: 1 info
- **2026-09-14** `12c8f48a9963`: 1 breaking

## Changes

- **2026-11-02** `ff0d59c98d7a`: 4 breaking, 5 warning, 47 info
  - added `subschema #1, subschema #2` to the response body `oneOf` list for the response status `200`
  - added `subschema #1, subschema #2, subschema #3, subschema #4, subschema #5` to the response body `oneOf` list for the response status `422`
  - the response's body type changed from `object` to no type for status `200`
  - the response's body type changed from `object` to no type for status `422`
  - removed the optional property `invoice_id` from the response with the `200` status
  - removed the optional property `invoice_url` from the response with the `200` status
  - removed the optional property `message` from the response with the `422` status
  - removed the optional property `success` from the response with the `200` status
  - removed the optional property `url` from the response with the `200` status
  - the request property `affiliate` became nullable
  - the request property `asn` became nullable
  - the request property `attribution` became nullable
  - the request property `attribution/referrer_host` became nullable
  - the request property `attribution/utm_campaign` became nullable
  - the request property `attribution/utm_content` became nullable
  - the request property `attribution/utm_medium` became nullable
  - the request property `attribution/utm_source` became nullable
  - the request property `attribution/utm_term` became nullable
  - the request property `billing_address_line1` became nullable
  - the request property `billing_address_line2` became nullable
  - the request property `billing_city` became nullable
  - the request property `billing_country` became nullable
  - the request property `billing_name` became nullable
  - the request property `billing_postcode` became nullable
  - the request property `billing_state` became nullable
  - the request property `cart/items/custom_fields/items/` became nullable
  - the request property `cart/items/dynamic_url` became nullable
  - the request property `cart/items/instructions` became nullable
  - the request property `cart/items/name` became nullable
  - the request property `cart/items/parentVariantId` became nullable
  - the request property `cart/items/price` became nullable
  - the request property `cart/items/productId` became nullable
  - the request property `cart/items/subscribe` became nullable
  - the request property `cart/items/variantId` became nullable
  - the request property `country_code` became nullable
  - the request property `coupon` became nullable
  - the request property `currency` became nullable
  - the request property `discord_access_token` became nullable
  - the request property `discord_refresh_token` became nullable
  - the request property `discord_user_id` became nullable
  - …16 more
- **2026-10-20** `000b5ef816e6`: 1 breaking, 3 info
  - added the new required request property `cart/items/deliverables`
  - added the new optional request property `cart/items/dynamic_url`
  - added the new optional request property `cart/items/instructions`
  - added the new optional request property `cart/items/parentVariantId`
- **2026-09-20** `b029c1ca97a8`: 1 info
  - added the new optional request property `attribution`
- **2026-09-14** `12c8f48a9963`: 1 breaking
  - the `cart/items/custom_fields` request property type changed from `object` to `array`

---

[Operation](https://skmtc.dev/sellauth/apis/sellauth-api/docs/v1/shops/:shopId/checkout/post.md) - [API](https://skmtc.dev/sellauth/apis/sellauth-api.md) - [Page](https://skmtc.dev/sellauth/apis/sellauth-api/changes/v1/shops/:shopId/checkout/post)