# invalid_batch

> The batch request is invalid; nothing was sent.

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

HTTP 400. Nothing reached the broker.

**Likely cause:** A malformed leg or a missing field.

**What to do:** Fix the batch; the message names the field.

**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.