# POST /api/v1/margin/order/test stops working

Calls to POST /api/v1/margin/order/test on KuCoin API stopped working on March 4, 2026.

- API: KuCoin API (api.kucoin.com)
- Kind: Endpoint removal
- Announced: March 4, 2026
- Takes effect: March 4, 2026
- Calls after that day: fail
- Calls it hits: `POST /api/v1/margin/order/test`
- Source: [Announcement](https://www.kucoin.com/docs-new/abandoned-endpoints/margin-trading/add-order-test-v1)
- Page: https://www.okapi.bot/providers/kucoin-api/breaking-changes/post-api-v1-margin-order-test-stops-working/

## What to use instead

Test margin orders with POST /api/v3/hf/margin/order/test.

## KuCoin API's words

> This is a SPOT Margin LF test order endpoint under Abandoned Endpoints and is no longer available.