invalid_batch

The batch request is invalid; nothing was sent.

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 in Errors. Send the error’s requestId to support and we can find the request.