backtest in mt4

[mohammad masroor]

i run my EA in different platform of mt4. in each plattform i have different result(for back test).data history of each platform is same. can some one help me?

[sktsec]

Maybe not the same exactly. Moreover, there is the spread setting, try to set it to a fix value in different platforms.

[l'andorrà]

@mohammad-masroor That's the tragedy of backtesting. It is never 100% reliable. The best approach (and that doesn't mean it is reliable) is using a 99.9% quality data. Anything below that is simply trash.