Inconsistency in back test and Live exit

Hi,

I am using bollinger bands. In back test exit happens properly but in live exit and entry happens too frequently. Any idea why there is discrepancy in script behavior for back test and live.

Thanks

Vineet

In backtest it will check based candle close and where as in Live EA or scripted alerts it check with the live ticks, so backtest and live may not be the same.