Error: The Buyorder request could not be completed - error:4752

[tehshredder]

Hi,

I am new at posting to these forums. I followed the tutorial on the link: Step-By-Step Guide to writing an Expert Advisor in MQL5 for Beginners - MQL5 Articles

It has the "My_first_EA.mq5" file at the end. When I run the Expert Advisor in Debug > Start on Real data, It does not allow me to enter any trades.

I get the Error: The Buyorder request could not be completed - error:4752 or The Sellorder request could not be completed - error:4752

Any assistance would be appreciated.

Thank you

[William Roeder]

tehshredder: get the Error: The Buyorder request could not be completed - error:4752 or The Sellorder request could not be completed - error:4752

Use the debugger or print out your variables, including _LastError and prices and find out why. Do you really expect us to debug your code for you?
          Code debugging - Developing programs - MetaEditor Help
          Error Handling and Logging in MQL5 - MQL5 Articles (2015)
          Tracing, Debugging and Structural Analysis of Source Code - MQL5 Articles (2011)
          Introduction to MQL5: How to write simple Expert Advisor and Custom Indicator - MQL5 Articles (2010)

[Fernando Carreiro]

tehshredder: I am new at posting to these forums. I followed the tutorial on the link: Step-By-Step Guide to writing an Expert Advisor in MQL5 for Beginners - MQL5 Articles.

It has the "My_first_EA.mq5" file at the end. When I run the Expert Advisor in Debug > Start on Real data, It does not allow me to enter any trades. I get the Error: The Buyorder request could not be completed - error:4752 or The Sellorder request could not be completed - error:4752

Error 4752, means that your trading via Expert Advisors is disabled.

ERR_TRADE_DISABLED

4752

Trading by Expert Advisors prohibited

Make sure you have enabled Algo Trading both at the terminal level as well as at the Expert level:

• Expert Advisors and Custom Indicators - Algorithmic Trading, Trading Robots - MetaTrader 5 Help

[tehshredder]

Thanks for your message Fernando.

Upon looking back at my original message, I realize that I have you the wrong error code (typo, my bad).

The actual error code is 4756: 

ERR_TRADE_SEND_FAILED

4756

Trade request sending failed

Any idea why I'm getting this error?

I have copied the code in this post.

Thank you.

//+------------------------------------------------------------------+
//|                                                  My_First_EA.mq5 |
//|                        Copyright 2010, MetaQuotes Software Corp. |
//|                                              http://www.mql5.com |
//+------------------------------------------------------------------+
#property copyright "Copyright 2010, MetaQuotes Software Corp."
#property link      "http://www.mql5.com"
#property version   "1.00"
//--- input parameters
input int      StopLoss=30;      // Stop Loss
input int      TakeProfit=100;   // Take Profit
input int      ADX_Period=8;     // ADX Period
input int      MA_Period=8;      // Moving Average Period
input int      EA_Magic=12345;   // EA Magic Number
input double   Adx_Min=22.0;     // Minimum ADX Value
input double   Lot=0.1;          // Lots to Trade
//--- Other parameters
int adxHandle; // handle for our ADX indicator
int maHandle;  // handle for our Moving Average indicator
double plsDI[],minDI[],adxVal[]; // Dynamic arrays to hold the values of +DI, -DI and ADX values for each bars
double maVal[]; // Dynamic array to hold the values of Moving Average for each bars
double p_close; // Variable to store the close value of a bar
int STP, TKP;   // To be used for Stop Loss & Take Profit values
//+------------------------------------------------------------------+
//| Expert initialization function                                   |
//+------------------------------------------------------------------+
int OnInit()
  {
//--- Get handle for ADX indicator
   adxHandle=iADX(NULL,0,ADX_Period);
//--- Get the handle for Moving Average indicator
   maHandle=iMA(_Symbol,_Period,MA_Period,0,MODE_EMA,PRICE_CLOSE);
//--- What if handle returns Invalid Handle
   if(adxHandle<0 || maHandle<0)
     {
      Alert("Error Creating Handles for indicators - error: ",GetLastError(),"!!");
      return(-1);
     }

//--- Let us handle currency pairs with 5 or 3 digit prices instead of 4
   STP = StopLoss;
   TKP = TakeProfit;
   if(_Digits==5 || _Digits==3)
     {
      STP = STP*10;
      TKP = TKP*10;
     }
   return(0);
  }
//+------------------------------------------------------------------+
//| Expert deinitialization function                                 |
//+------------------------------------------------------------------+
void OnDeinit(const int reason)
  {
//--- Release our indicator handles
   IndicatorRelease(adxHandle);
   IndicatorRelease(maHandle);
  }
//+------------------------------------------------------------------+
//| Expert tick function                                             |
//+------------------------------------------------------------------+
void OnTick()
  {
//--- Do we have enough bars to work with
   if(Bars(_Symbol,_Period)<60) // if total bars is less than 60 bars
     {
      Alert("We have less than 60 bars, EA will now exit!!");
      return;
     }  

// We will use the static Old_Time variable to serve the bar time.
// At each OnTick execution we will check the current bar time with the saved one.
// If the bar time isn't equal to the saved time, it indicates that we have a new tick.

   static datetime Old_Time;
   datetime New_Time[1];
   bool IsNewBar=false;

// copying the last bar time to the element New_Time[0]
   int copied=CopyTime(_Symbol,_Period,0,1,New_Time);
   if(copied>0) // ok, the data has been copied successfully
     {
      if(Old_Time!=New_Time[0]) // if old time isn't equal to new bar time
        {
         IsNewBar=true;   // if it isn't a first call, the new bar has appeared
         if(MQL5InfoInteger(MQL5_DEBUGGING)) Print("We have new bar here ",New_Time[0]," old time was ",Old_Time);
         Old_Time=New_Time[0];            // saving bar time
        }
     }
   else
     {
      Alert("Error in copying historical times data, error =",GetLastError());
      ResetLastError();
      return;
     }

//--- EA should only check for new trade if we have a new bar
   if(IsNewBar==false)
     {
      return;
     }
 
//--- Do we have enough bars to work with
   int Mybars=Bars(_Symbol,_Period);
   if(Mybars<60) // if total bars is less than 60 bars
     {
      Alert("We have less than 60 bars, EA will now exit!!");
      return;
     }

//--- Define some MQL5 Structures we will use for our trade
   MqlTick latest_price;      // To be used for getting recent/latest price quotes
   MqlTradeRequest mrequest;  // To be used for sending our trade requests
   MqlTradeResult mresult;    // To be used to get our trade results
   MqlRates mrate[];          // To be used to store the prices, volumes and spread of each bar
   ZeroMemory(mrequest);      // Initialization of mrequest structure
/*
     Let's make sure our arrays values for the Rates, ADX Values and MA values 
     is store serially similar to the timeseries array
*/
// the rates arrays
   ArraySetAsSeries(mrate,true);
// the ADX DI+values array
   ArraySetAsSeries(plsDI,true);
// the ADX DI-values array
   ArraySetAsSeries(minDI,true);
// the ADX values arrays
   ArraySetAsSeries(adxVal,true);
// the MA-8 values arrays
   ArraySetAsSeries(maVal,true);


//--- Get the last price quote using the MQL5 MqlTick Structure
   if(!SymbolInfoTick(_Symbol,latest_price))
     {
      Alert("Error getting the latest price quote - error:",GetLastError(),"!!");
      return;
     }

//--- Get the details of the latest 3 bars
   if(CopyRates(_Symbol,_Period,0,3,mrate)<0)
     {
      Alert("Error copying rates/history data - error:",GetLastError(),"!!");
      ResetLastError();
      return;
     }

//--- Copy the new values of our indicators to buffers (arrays) using the handle
   if(CopyBuffer(adxHandle,0,0,3,adxVal)<0 || CopyBuffer(adxHandle,1,0,3,plsDI)<0
      || CopyBuffer(adxHandle,2,0,3,minDI)<0)
     {
      Alert("Error copying ADX indicator Buffers - error:",GetLastError(),"!!");
      ResetLastError();
      return;
     }
   if(CopyBuffer(maHandle,0,0,3,maVal)<0)
     {
      Alert("Error copying Moving Average indicator buffer - error:",GetLastError());
      ResetLastError();
      return;
     }
//--- we have no errors, so continue
//--- Do we have positions opened already?
   bool Buy_opened=false;  // variable to hold the result of Buy opened position
   bool Sell_opened=false; // variables to hold the result of Sell opened position

   if(PositionSelect(_Symbol)==true) // we have an opened position
     {
      if(PositionGetInteger(POSITION_TYPE)==POSITION_TYPE_BUY)
        {
         Buy_opened=true;  //It is a Buy
        }
      else if(PositionGetInteger(POSITION_TYPE)==POSITION_TYPE_SELL)
        {
         Sell_opened=true; // It is a Sell
        }
     }

// Copy the bar close price for the previous bar prior to the current bar, that is Bar 1
   p_close=mrate[1].close;  // bar 1 close price

/*
    1. Check for a long/Buy Setup : MA-8 increasing upwards, 
    previous price close above it, ADX > 22, +DI > -DI
*/
//--- Declare bool type variables to hold our Buy Conditions
   bool Buy_Condition_1=(maVal[0]>maVal[1]) && (maVal[1]>maVal[2]); // MA-8 Increasing upwards
   bool Buy_Condition_2 = (p_close > maVal[1]);         // previuos price closed above MA-8
   bool Buy_Condition_3 = (adxVal[0]>Adx_Min);          // Current ADX value greater than minimum value (22)
   bool Buy_Condition_4 = (plsDI[0]>minDI[0]);          // +DI greater than -DI

//--- Putting all together   
   if(Buy_Condition_1 && Buy_Condition_2)
     {
      if(Buy_Condition_3 && Buy_Condition_4)
        {
         // any opened Buy position?
         if(Buy_opened)
           {
            Alert("We already have a Buy Position!!!");
            return;    // Don't open a new Buy Position
           }
         ZeroMemory(mrequest);
         mrequest.action = TRADE_ACTION_DEAL;                                  // immediate order execution
         mrequest.price = NormalizeDouble(latest_price.ask,_Digits);           // latest ask price
         mrequest.sl = NormalizeDouble(latest_price.ask - STP*_Point,_Digits); // Stop Loss
         mrequest.tp = NormalizeDouble(latest_price.ask + TKP*_Point,_Digits); // Take Profit
         mrequest.symbol = _Symbol;                                            // currency pair
         mrequest.volume = Lot;                                                 // number of lots to trade
         mrequest.magic = EA_Magic;                                             // Order Magic Number
         mrequest.type = ORDER_TYPE_BUY;                                        // Buy Order
         mrequest.type_filling = ORDER_FILLING_FOK;                             // Order execution type
         mrequest.deviation=100;                                                // Deviation from current price
         //--- send order
         OrderSend(mrequest,mresult);
         // get the result code
         if(mresult.retcode==10009 || mresult.retcode==10008) //Request is completed or order placed
           {
            Alert("A Buy order has been successfully placed with Ticket#:",mresult.order,"!!");
           }
         else
           {
            Alert("The Buy order request could not be completed -error:",GetLastError());
            ResetLastError();           
            return;
           }
        }
     }
/*
    2. Check for a Short/Sell Setup : MA-8 decreasing downwards, 
    previous price close below it, ADX > 22, -DI > +DI
*/
//--- Declare bool type variables to hold our Sell Conditions
   bool Sell_Condition_1 = (maVal[0]<maVal[1]) && (maVal[1]<maVal[2]);  // MA-8 decreasing downwards
   bool Sell_Condition_2 = (p_close <maVal[1]);                         // Previous price closed below MA-8
   bool Sell_Condition_3 = (adxVal[0]>Adx_Min);                         // Current ADX value greater than minimum (22)
   bool Sell_Condition_4 = (plsDI[0]<minDI[0]);                         // -DI greater than +DI

//--- Putting all together
   if(Sell_Condition_1 && Sell_Condition_2)
     {
      if(Sell_Condition_3 && Sell_Condition_4)
        {
         // any opened Sell position?
         if(Sell_opened)
           {
            Alert("We already have a Sell position!!!");
            return;    // Don't open a new Sell Position
           }
         ZeroMemory(mrequest);
         mrequest.action=TRADE_ACTION_DEAL;                                // immediate order execution
         mrequest.price = NormalizeDouble(latest_price.bid,_Digits);           // latest Bid price
         mrequest.sl = NormalizeDouble(latest_price.bid + STP*_Point,_Digits); // Stop Loss
         mrequest.tp = NormalizeDouble(latest_price.bid - TKP*_Point,_Digits); // Take Profit
         mrequest.symbol = _Symbol;                                          // currency pair
         mrequest.volume = Lot;                                              // number of lots to trade
         mrequest.magic = EA_Magic;                                          // Order Magic Number
         mrequest.type= ORDER_TYPE_SELL;                                     // Sell Order
         mrequest.type_filling = ORDER_FILLING_FOK;                          // Order execution type
         mrequest.deviation=100;                                             // Deviation from current price
         //--- send order
         OrderSend(mrequest,mresult);
         // get the result code
         if(mresult.retcode==10009 || mresult.retcode==10008) //Request is completed or order placed
           {
            Alert("A Sell order has been successfully placed with Ticket#:",mresult.order,"!!");
           }
         else
           {
            Alert("The Sell order request could not be completed -error:",GetLastError());
            ResetLastError();
            return;
           }
        }
     }
   return;
  }
//+------------------------------------------------------------------+

[Fernando Carreiro]

tehshredder #:  Upon looking back at my original message, I realize that I have you the wrong error code (typo, my bad). The actual error code is 4756: 

ERR_TRADE_SEND_FAILED

4756

Trade request sending failed

When you get a 4756 error, then you should also print out the trade result's return code which will tell you why the trade request failed. In the case of your code it is the "mresult.retcode".

[tehshredder]

Hi Fernando,

I printed the code and was getting the below:

10044

TRADE_RETCODE_CLOSE_ONLY

The request is rejected, because the "Only position closing is allowed" rule is set for the symbol

After some research it led me to this thread:  Strategy Tester :: Error 10044 (Only position closing is allowed) on EA - Strategy Tester - Expert Advisors and Automated Trading - MQL5 programming forum

I needed to use charts with the customer symbol trade set to "Full access". My Australian Broker IC markets does not have this on their default charts, but they did have a folder of charts named "forex.a" that then all have this enabled. I can run the code with no issues now.

Thank you for your help.