# invalid_json

> Signal webhook: the alert body is not a JSON object.

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

HTTP 400. Nothing reached the broker.

**Likely causes:**

- The alert message is empty or plain text.
- The JSON has a typo, often a missing quote or comma.

**What to do:** Paste the JSON message from the dashboard into the alert's Message box. 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.