Invalid Formula Blacklisted Field

ticker, action, test, and cancel must always be sent as literal JSON values (no leading =). Formulas are supported on other top-level fields and on eligible sub-fields under takeProfit and stopLoss—see invalid formula syntax for the full layout.

Typical error detail (webhook log)

The field ticker does not support formulas. The ticker, action, test, and cancel fields must have literal values.

Example — literals required for ticker and action

{
  "ticker": "=signal.rawTicker",
  "action": "buy"
}

Correct — send the symbol as a literal

{
  "ticker": "SPY",
  "action": "buy"
}

Example — action must be a literal

{
  "ticker": "SPY",
  "action": "=signal.side"
}

Correct

{
  "ticker": "SPY",
  "action": "buy"
}

If you need conditional ticker or action, decide that in your alert platform (or preprocessor) and send the final literal strings. Use = only on fields covered in invalid formula syntax.