outcome_unknown

A trade sent over streaming got no answer from the execution service; it may have executed (`stringCode` of a streaming `InternalError`).

WebSocket error frame. Unknown: it may have executed. Resolve it with the same idempotency key before acting.

Likely cause: The execution service or the terminal did not answer in time.

What to do: Retry with the same requestId to learn the real outcome. Never send a new trade blindly.

Retry: Only with the same Idempotency-Key (or clientId). The first attempt may have executed; never resend a trade blindly.

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