---
title: "Changes to Validate a selection and decide the completion path"
method: POST
path: "/v1/checkout/validate"
---

# Changes to Validate a selection and decide the completion path

`POST /v1/checkout/validate`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 4 of 11 revisions.

- **2026-10-03** `69118612e1fe`: 1 info
- **2026-09-22** `1673faf11a0f`: 2 breaking, 2 info
- **2026-09-03** `eafafa285157`: 1 warning
- **2026-08-18** `0faefa545909`: 1 info

## Changes

- **2026-10-03** `69118612e1fe`: 1 info
  - added the required property `selection/items/urlHandoffAuthorized` to the response with the `200` status
- **2026-09-22** `1673faf11a0f`: 2 breaking, 2 info
  - request property `context/currentMerchants/electricity` list-of-types was narrowed by removing types `null` from media type `application/json`
  - request property `context/currentMerchants/gas` list-of-types was narrowed by removing types `null` from media type `application/json`
  - the request property `context/currentMerchants/electricity` became nullable
  - the request property `context/currentMerchants/gas` became nullable
- **2026-09-03** `eafafa285157`: 1 warning
  - added the new `COMPARISON_ONLY` enum value to the `issues/items/code` response property for the response status `200`
- **2026-08-18** `0faefa545909`: 1 info
  - endpoint added

---

[Operation](https://skmtc.dev/vwala/apis/energy-platform-api/docs/v1/checkout/validate/post.md) - [API](https://skmtc.dev/vwala/apis/energy-platform-api.md) - [Page](https://skmtc.dev/vwala/apis/energy-platform-api/changes/v1/checkout/validate/post)