netting_shared_symbol

Signal webhook: on an MT5 netting account, the symbol already has a position this webhook did not open.

HTTP 409. Nothing reached the broker.

Likely cause: A person, another program or another webhook holds a position on the symbol. On netting there is one position per symbol, so an order would change theirs.

What to do: Turn on allow_netting_shared or manage_others on the webhook to allow it, or trade another symbol. 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.