unreachable_account

Some accounts in the batch have no terminal; nothing was sent.

HTTP 400. Nothing reached the broker.

Likely cause: Accounts undeployed or their terminals down.

What to do: Deploy them or drop them from the batch.

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.