High / Low Entry EA

Hi All,

Having a funny one with a super simple EA and I'm not sure exactly what the matter is.  In principle I simply want to execute a buy trade when the current market price (Going by the Bid) is greater than previous day's high, and also the other way - selling when lower than previous low.

      PreviousDayHigh = iHigh(_Symbol, _Period, 1);
      PreviousDayLow = iLow(_Symbol, _Period, 1);

        if (Bid < PreviousDayLow)
         {
            SellMarket();
         }
         
         if (Bid > PreviousDayHigh)
         {
            BuyMarket();
         }

There is no problem anywhere else in the code as the subroutines Buy/Sell market are from other EA's that successfully execute trades.

The PreviousDayHigh/Low variables are extern double.

There is no issue flagged in the backtest journal, it compiles fine...just doesn't execute trades, I presume it is due to my inability to correctly use the language to identify the high/low value or perhaps the 'Bid' function.

The EA runs on the daily chart.

Any advice and help would be greatly appreciated!