---
title: "Changes to Contract External Trade-In"
method: POST
path: "/api/checkout/v1/external-trade-in/"
---

# Changes to Contract External Trade-In

`POST /api/checkout/v1/external-trade-in/`

> Every recorded change to this operation, newest first.

## Timeline

Changed in 1 of 2 revisions.

- **2026-11-03** `3026811271f7`: 1 info

## Changes

- **2026-11-03** `3026811271f7`: 1 info
  - added the non-success response with the status `429`

---

[Operation](https://skmtc.dev/heylight/apis/heidipay-checkout-api/docs/api/checkout/v1/external-trade-in/post.md) - [API](https://skmtc.dev/heylight/apis/heidipay-checkout-api.md) - [Page](https://skmtc.dev/heylight/apis/heidipay-checkout-api/changes/api/checkout/v1/external-trade-in/post)