no_alert_channel

Admin: no alert channel is set up, so the test notice was not sent.

HTTP 409.

Likely cause: None of the operator alert channels is configured.

What to do: Set up at least one alert channel, then send the test notice again.

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

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