First let me reply to your question. I highly advice that you don’t automate your strategy especially since you are scalping. What I advice you should do is to create an EA that will automate your pre-determined Stop Loss and Take Profit( Risk Management). This will enable you to enter and exit a trade with predetermined parameters since scalping requires fast fingers. Even traders that trade with automated strategies monitor them. So this is your best option. As for the slippage and requotes other traders are talking about, which are two similar things I suggest you take these factors into account in your back testing and then decide there from the results. But I think requotes should not be a problem as long as you are sure the news will move the market. As we like to say if you’re using a stop loss especially as a scalper or a day trader then you are already on the losing side of the market. But if you firmly believe that the market will move in your expected direction then you should do just fine. Slippage is another thing so you might want to maybe use other form of orders instead of instant execution, but again that brings up another challenge because then you have to be real sure that the price will make a pullback before heading in the original direction. Else you might just watch price move without you. Just keep practicing! soon everything will unfold for you 