Can't send a sell order. 4756 10004

[mirac baver ozturk]

Hello everyone. My EA successfully sends buy orders but for some reason cannot send sell orders. When I try to send a sell order OrderSend function fails with 4756 error code and MqlTradeResult retcode is 10004. The following  is a part of my code that sends orders. 

void openPosition(string buyOrSell, double givenStopLoss, double givenTakeProfit, double givenLots, MqlTick &givenTick)
{
   MqlTradeRequest myRequest= {};
   MqlTradeResult myResult = {};
   ZeroMemory(myRequest);
   ZeroMemory(myResult);

   myRequest.action = TRADE_ACTION_DEAL;
   myRequest.magic = myMagicNo;
   myRequest.symbol = Symbol();
   myRequest.volume = givenLots;
   myRequest.type_filling = ORDER_FILLING_IOC;
   myRequest.comment = "no comment";
   myRequest.price = NormalizeDouble(givenTick.ask,Digits());
   myRequest.deviation = 50;//I made this number out of my ass(The maximal price deviation, specified in points)

   if(buyOrSell == "buy")   //buy
      {
         //Print("Buy!");
         myRequest.sl = 0.0;//NormalizeDouble(givenTick.ask - (givenStopLoss * _Point), Digits());
         myRequest.tp = 0.0;//NormalizeDouble(givenTick.ask + (givenTakeProfit * _Point), Digits());
         //Print("GivenTick.ask: ",givenTick.ask, " StopLoss:", myRequest.sl, " TakeProfit:", myRequest.tp);
         myRequest.type = ORDER_TYPE_BUY;
      }
   else if(buyOrSell == "sell")     //sell
      {
         //Print("Sell!");
         myRequest.sl = 0.0;//NormalizeDouble(givenTick.bid + (givenStopLoss * _Point), Digits());
         myRequest.tp = 0.0;//NormalizeDouble(givenTick.bid - (givenTakeProfit * _Point), Digits());
         //Print("GivenTick.bid: ",givenTick.bid, " StopLoss:", myRequest.sl, " TakeProfit:", myRequest.tp);
         myRequest.type = ORDER_TYPE_SELL;
      }
   else
      {
         Print("Wrong buyOrSell value given to openPosition function!");
      }

//send the order and check the return value
   if(!OrderSend(myRequest, myResult))   //if OrderSend returns false(iow if the OrderSend has failed)
      {
         Print("ERROR! openPosition.OrderSend has failed with error code:", GetLastError());
         Print("result retcode:", myResult.retcode);
         ResetLastError();
         if(buyOrSell == "buy")
            {
               Print("GivenTick.ask: ",givenTick.ask, " StopLoss:", myRequest.sl, " TakeProfit:", myRequest.tp);
            }
         else if(buyOrSell == "sell")
            {
               Print("GivenTick.bid: ",givenTick.bid, " StopLoss:", myRequest.sl, " TakeProfit:", myRequest.tp);
            }
         return;
      }
   else
      {
         if(buyOrSell == "buy")
            buyOpen = true;
         else if(buyOrSell == "sell")
            sellOpen = true;
         //Print("An order is given!");
      }

}

[Quantum Dev]

mirac baver ozturk:
Hello everyone. My EA successfully sends buy orders but for some reason cannot send sell orders. When I try to send a sell order OrderSend function fails with 4756 error code and MqlTradeResult retcode is 10004. The following  is a part of my code that sends orders. 

Why not use the CTrade class?

#include <Trade\Trade.mqh>

CTrade trade;

void OnTick(){

//Your logic

trade.Buy() //pass parameters in braces
trade.Sell() // pass parameters in braces


}

[Nino Guevara Ruwano]

mirac baver ozturk:
myRequest.price = NormalizeDouble(givenTick.ask,Digits());

You are using:

myRequest.price = NormalizeDouble(givenTick.ask,Digits());

for both sending order Buy and also sending order Sell?

[William Roeder]

You buy at the Ask and sell at the Bid. Pending Buy Stop orders become market orders when hit by the Ask.

[mirac baver ozturk]

Nino Guevara Ruwano #:

You are using:

for both sending order Buy and also sending order Sell?

this solved my problem. thank you.

[Javier_AS_]

William Roeder #:

You buy at the Ask and sell at the Bid. Pending Buy Stop orders become market orders when hit by the Ask.

Thank you so much William, I recently started with an EA as well, and doing a course related I was adviced about this but I can not understand this really well. I think I am biased for the brokers as I do not have to worry about that, just putting my order above/bellow price when I want to go short or long but I get really confused with bid and ask price