symbol_required

Signal webhook: the alert has no symbol.

HTTP 400. Nothing reached the broker.

Likely cause: The alert message has no symbol field.

What to do: Add "symbol": "{{ticker}}" to the alert message. Nothing was sent.

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

Listed under Signal webhooks (TradingView) in Errors. Send the error’s requestId to support and we can find the request.