Problem With Backtesting

Hello all expert coders,

I wrote an ea to move away from spending countless hours on the monitors. I am doing some back testing but whenever I run a back test i get the following error:
Warning : Can not execute new OP_SELL order for Symbol EURUSD. Maximum number of 1 open positions reached.

Now the strange thing is that if i run it on demo/live account, it works fine and does what is meant for. So you may ask what is the problem? Well I would like to add some more logic such as a trade manager and few more things, and guess i need to do the back testing to reach confidence to go live trading.

i have attached the code, thanks in advance for any help provided

Back testing is a great way of finding out how a system may perform. At the same time I feel too many look into this too much as at the end of the day a back test shows previous results and not future trading. I have known traders that will look at a back test before they look at the current 2 years of documented trading history which I don't agree with. Just my two cents.

Mark

thanks for your input, i am just trying to understand if the implementation of the other function would improve the tests performed so far.

Hi Fabio, I understand your best bet would be to try to get in contact with a coder or a MT4/MT5 software developer. Some can be found on the mql5 community network however as I am fairly new to this site there may be some here.