# placeholder_not_filled

> Signal webhook: a TradingView placeholder in the alert was not filled in.

Source: https://tickwire.io/docs/errors/placeholder_not_filled/

HTTP 400. Nothing reached the broker.

**Likely cause:** A strategy placeholder such as `{{strategy.order.action}}` in an alert that was not created from a strategy.

**What to do:** Create the alert from the strategy, or send plain values. Nothing was sent.

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

Listed under [Signal webhooks (TradingView)](https://tickwire.io/docs/errors/#signal-webhooks-tradingview) in [Errors](https://tickwire.io/docs/errors/). Send the error's `requestId` to support and we can find the request.