If I am trading on the same instrument using different trading systems, does this code apply per trading system or will it generally check whether there is already an open position?
E.g. I have 2 different trading systems on FTSE 100. Both trading systems have this code. Trading system 1 has already opened a long position. If trading system 2 then instructs to open a long position, will the system open another long position as per instructions from trading system 2 or will it reject the order because trading system 1 already has a long position open?