Pine Script Dynamic Alert Messages

Builds alert text at runtime with str.tostring — symbol, price, size — instead of static dialog placeholders.

Copy//@version=6
strategy("Dynamic Alert Message", overlay=true, calc_on_every_tick=false)

// ── Inputs ──────────────────────────────────────────────
qty = input.int(1, "Contracts", minval=1)

// ── Runtime message builder ──────────────────────────────
// {{ticker}} / {{close}} placeholders work only in the alert
// DIALOG message box — alert() strings must be built in code.
buildMsg(action) =>
    action + " " + syminfo.ticker + " x" + str.tostring(qty) +
     " @ " + str.tostring(close, format.mintick) + " [" + timeframe.period + "]"

// ── Entry logic (replace with your own conditions) ───────
longCondition  = ta.crossover(ta.ema(close, 9), ta.ema(close, 21))
shortCondition = ta.crossunder(ta.ema(close, 9), ta.ema(close, 21))

if longCondition
    strategy.entry("Long", strategy.long, qty=qty)
    alert(buildMsg("BUY"), alert.freq_once_per_bar_close)

if shortCondition
    strategy.entry("Short", strategy.short, qty=qty)
    alert(buildMsg("SELL"), alert.freq_once_per_bar_close)

Settings

• qty — contract quantity included in the message and the entry. Default 1.

How to use

• Paste into the Pine Editor and replace the EMA-crossover placeholder with your own entry conditions.
• Extend buildMsg with anything you track — stop price, target, session P&L — via str.tostring.
• Use format.mintick for prices so the string always matches the symbol’s tick grid.
• For webhook JSON payloads, see the TradersPost and PickMyTrade snippets — same pattern, JSON-shaped.

Frequently Asked Questions

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