@roar thank you for reply. I follow your EA, when testing the MA line show on the chart. But in real the line not show. Why?. Tq

@roar Thank you. what should i do to make it work on real

@roar i copy from fxdreema and put in this message box and it came out like that. i tested, it running good. but on real it not work. why?

// create an Array for several prices
double myMovingAverageArray1[],myMovingAverageArray2[];

  // define the properties of the Moving Average1
  int movingAverageDefinition1 = iMA (_Symbol,_Period,20,0,MODE_EMA,PRICE_CLOSE);
  
        // define the properties of the Moving Average2
  int movingAverageDefinition2 = iMA (_Symbol,_Period,50,0,MODE_EMA,PRICE_CLOSE);
  
  // sort the price array1 from the current candle downwards
  ArraySetAsSeries(myMovingAverageArray1,true);
  
  // sort the price array2 from the current candle downwards
  ArraySetAsSeries(myMovingAverageArray2,true);
  
  // Defined MA1, one line,current candle,3 candles, store result 
  CopyBuffer(movingAverageDefinition1,0,0,3,myMovingAverageArray1);
  
  // Defined MA2, one line,current candle,3 candles, store result 
  CopyBuffer(movingAverageDefinition2,0,0,3,myMovingAverageArray2);
  
  // calculate MA1 for the current candle
  double myMovingAverageValue1=myMovingAverageArray1[0];
  
  // calculate MA2 for the current candle
  double myMovingAverageValue2=myMovingAverageArray2[0];
  
  if (   // Check if the 20 candle EA is above the 50 candle EA  
        (myMovingAverageArray1[0]>myMovingAverageArray2[0])
     && (myMovingAverageArray1[1]<myMovingAverageArray2[1])
     )
        {
        Comment ("BUY");
        }

  if (   // Check if the 50 candle EA is above the 20 candle EA          
        (myMovingAverageArray1[0]<myMovingAverageArray2[0])
     && (myMovingAverageArray1[1]>myMovingAverageArray2[1])
     )
        {
        Comment ("SELL");
        }     

Why the 2 MA cross not activated Buy or Sell