# unknown_field

> The trade body has a field the trade route does not know, so nothing was sent. It is the `code` of a ValidationError.

Source: https://tickwire.io/docs/errors/unknown_field/

HTTP 400. Nothing reached the broker.

**Likely causes:**

- A misspelt field, for example stopLosss for stopLoss.
- A field from another API that this route does not take.

**What to do:** Fix or remove the field. `details` names it, with a did-you-mean hint when one is close.

**Retry:** No. The same request gets the same answer; change something first.

Listed under [Orders and idempotency](https://tickwire.io/docs/errors/#orders-and-idempotency) in [Errors](https://tickwire.io/docs/errors/). Send the error's `requestId` to support and we can find the request.