---
title: "Changes to Create a Reader Checkout"
method: POST
path: "/v0.1/merchants/{merchant_code}/readers/{reader_id}/checkout"
---

# Changes to Create a Reader Checkout

`POST /v0.1/merchants/{merchant_code}/readers/{reader_id}/checkout`

> Every recorded change to this endpoint, newest first.

## Timeline

Changed in 5 of 53 revisions.

- **2026-08-03** `f50e1dc97523` — 1 info
- **2026-04-08** `96b3b0180cb3` — 1 info
- **2026-03-11** `cd79d83b07e0` — 7 info
- **2026-02-25** `bef1083e0580` — 5 info
- **2025-12-11** `b8fb7c9463b8` — 1 warning, 2 info

## Changes

- **2026-08-03** `f50e1dc97523` — 1 info
  - added the optional property `data/checkout_id` to the response with the `201` status
- **2026-04-08** `96b3b0180cb3` — 1 info
  - added the new optional request property `aade`
- **2026-03-11** `cd79d83b07e0` — 7 info
  - added the media type `application/problem+json` for the response with the status `400`
  - added the media type `application/problem+json` for the response with the status `401`
  - added the media type `application/problem+json` for the response with the status `422`
  - added the non-success response with the status `404`
  - removed the non-success response with the status `500`
  - removed the non-success response with the status `502`
  - removed the non-success response with the status `504`
- **2026-02-25** `bef1083e0580` — 5 info
  - added the required property `errors/type` to the response with the `400` status
  - added the required property `errors/type` to the response with the `401` status
  - added the required property `errors/type` to the response with the `500` status
  - added the required property `errors/type` to the response with the `502` status
  - added the required property `errors/type` to the response with the `504` status
- **2025-12-11** `b8fb7c9463b8` — 1 warning, 2 info
  - the `installments` request property's min was set to `1.00`
  - the request property `affiliate` became nullable
  - the request property `installments` became nullable

---

[Operation](https://skmtc.dev/sumup/apis/sumup-rest-api/docs/v0.1/merchants/:merchant_code/readers/:reader_id/checkout/post.md) · [API](https://skmtc.dev/sumup/apis/sumup-rest-api.md) · [Page](https://skmtc.dev/sumup/apis/sumup-rest-api/changes/v0.1/merchants/:merchant_code/readers/:reader_id/checkout/post)