MT 4 - Error codes
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ERR_NO_ERROR
ERR_NO_RESULT
ERR_COMMON_ERROR
ERR_INVALID_TRADE_PARAMETERS
ERR_SERVER_BUSY
ERR_OLD_VERSION
ERR_NO_CONNECTION
ERR_NOT_ENOUGH_RIGHTS
ERR_TOO_FREQUENT_REQUESTS
ERR_MALFUNCTIONAL_TRADE
ERR_ACCOUNT_DISABLED
ERR_INVALID_ACCOUNT
ERR_TRADE_TIMEOUT
ERR_INVALID_PRICE
ERR_INVALID_STOPS
ERR_INVALID_TRADE_VOLUME
ERR_MARKET_CLOSED
ERR_TRADE_DISABLED
ERR_NOT_ENOUGH_MONEY
ERR_PRICE_CHANGED
ERR_OFF_QUOTES
ERR_BROKER_BUSY
ERR_REQUOTE
ERR_ORDER_LOCKED
ERR_LONG_POSITIONS_ONLY_ALLOWED
ERR_TOO_MANY_REQUESTS
ERR_TRADE_MODIFY_DENIED
ERR_TRADE_CONTEXT_BUSY
ERR_TRADE_EXPIRATION_DENIED
ERR_TRADE_TOO_MANY_ORDERS
ERR_TRADE_HEDGE_PROHIBITED
0
1
2
3
4
5
6
7
8
9
64
65
128
129
130
131
132
133
134
135
136
137
138
139
140
141
145
146
147
148
149
No error returned.
No error returned, but the result is unknown.
Common error.
Invalid trade parameters.
Trade server is busy.
Old version of the client terminal.
No connection with trade server.
Not enough rights.
Too frequent requests.
Malfunctional trade operation.
Account disabled.
Invalid account.
Trade timeout.
Invalid price.
Invalid stops.
Invalid trade volume.
Market is closed.
Trade is disabled.
Not enough money.
Price changed.
Off quotes.
Broker is busy.
Requote.
Order is locked.
Long positions only allowed.
Too many requests.
Modification denied because order too close to market.
Trade context is busy.
Expirations are denied by broker.
The amount of open and pending orders has reached the limit set by the broker.
An attempt to open a position opposite to the existing one when hedging is disabled.
Error codes returned from trade server
Value Constant Description
MQL4 run time error codes
Value Constant Description
ERR_NO_MQLERROR
ERR_WRONG_FUNCTION_POINTER
ERR_ARRAY_INDEX_OUT_OF_RANGE
ERR_NO_MEMORY_FOR_CALL_STACK
ERR_RECURSIVE_STACK_OVERFLOW
ERR_NOT_ENOUGH_STACK_FOR_PARAM
ERR_NO_MEMORY_FOR_PARAM_STRING
ERR_NO_MEMORY_FOR_TEMP_STRING
ERR_NOT_INITIALIZED_STRING
ERR_NOT_INITIALIZED_ARRAYSTRING
ERR_NO_MEMORY_FOR_ARRAYSTRING
ERR_TOO_LONG_STRING
ERR_REMAINDER_FROM_ZERO_DIVIDE
ERR_ZERO_DIVIDE
ERR_UNKNOWN_COMMAND
ERR_WRONG_JUMP
ERR_NOT_INITIALIZED_ARRAY
ERR_DLL_CALLS_NOT_ALLOWED
ERR_CANNOT_LOAD_LIBRARY
ERR_CANNOT_CALL_FUNCTION
ERR_EXTERNAL_CALLS_NOT_ALLOWED
ERR_NO_MEMORY_FOR_RETURNED_STR
ERR_SYSTEM_BUSY
ERR_INVALID_FUNCTION_PARAMSCNT
ERR_INVALID_FUNCTION_PARAMVALUE
ERR_STRING_FUNCTION_INTERNAL
ERR_SOME_ARRAY_ERROR
ERR_INCORRECT_SERIESARRAY_USING
ERR_CUSTOM_INDICATOR_ERROR
ERR_INCOMPATIBLE_ARRAYS
ERR_GLOBAL_VARIABLES_PROCESSING
ERR_GLOBAL_VARIABLE_NOT_FOUND
ERR_FUNC_NOT_ALLOWED_IN_TESTING
ERR_FUNCTION_NOT_CONFIRMED
ERR_SEND_MAIL_ERROR
ERR_STRING_PARAMETER_EXPECTED
ERR_INTEGER_PARAMETER_EXPECTED
ERR_DOUBLE_PARAMETER_EXPECTED
ERR_ARRAY_AS_PARAMETER_EXPECTED
ERR_HISTORY_WILL_UPDATED
ERR_TRADE_ERROR
ERR_END_OF_FILE
ERR_SOME_FILE_ERROR
ERR_WRONG_FILE_NAME
ERR_TOO_MANY_OPENED_FILES
ERR_CANNOT_OPEN_FILE
ERR_INCOMPATIBLE_FILEACCESS
ERR_NO_ORDER_SELECTED
ERR_UNKNOWN_SYMBOL
ERR_INVALID_PRICE_PARAM
ERR_INVALID_TICKET
ERR_TRADE_NOT_ALLOWED
ERR_LONGS_NOT_ALLOWED
ERR_SHORTS_NOT_ALLOWED
ERR_OBJECT_ALREADY_EXISTS
ERR_UNKNOWN_OBJECT_PROPERTY
ERR_OBJECT_DOES_NOT_EXIST
ERR_UNKNOWN_OBJECT_TYPE
ERR_NO_OBJECT_NAME
ERR_OBJECT_COORDINATES_ERROR
ERR_NO_SPECIFIED_SUBWINDOW
ERR_SOME_OBJECT_ERROR
4000
4001
4002
4003
4004
4005
4006
4007
4008
4009
4010
4011
4012
4013
4014
4015
4016
4017
4018
4019
4020
4021
4022
4050
4051
4052
4053
4054
4055
4056
4057
4058
4059
4060
4061
4062
4063
4064
4065
4066
4067
4099
4100
4101
4102
4103
4104
4105
4106
4107
4108
4109
4110
4111
4200
4201
4202
4203
4204
4205
4206
4207
No error.
Wrong function pointer.
Array index is out of range.
No memory for function call stack.
Recursive stack overflow.
Not enough stack for parameter.
No memory for parameter string.
No memory for temp string.
Not initialized string.
Not initialized string in array.
No memory for array string.
Too long string.
Remainder from zero divide.
Zero divide.
Unknown command.
Wrong jump (never generated error).
Not initialized array.
DLL calls are not allowed.
Cannot load library.
Cannot call function.
Expert function calls are not allowed.
Not enough memory for temp string returned from function.
System is busy (never generated error).
Invalid function parameters count.
Invalid function parameter value.
String function internal error.
Some array error.
Incorrect series array using.
Custom indicator error.
Arrays are incompatible.
Global variables processing error.
Global variable not found.
Function is not allowed in testing mode.
Function is not confirmed.
Send mail error.
String parameter expected.
Integer parameter expected.
Double parameter expected.
Array as parameter expected.
Requested history data in updating state.
Some error in trading function.
End of file.
Some file error.
Wrong file name.
Too many opened files.
Cannot open file.
Incompatible access to a file.
No order selected.
Unknown symbol.
Invalid price.
Invalid ticket.
Trade is not allowed. Enable checkbox "Allow live trading" in the expert properties.
Longs are not allowed. Check the expert properties.
Shorts are not allowed. Check the expert properties.
Object exists already.
Unknown object property.
Object does not exist.
Unknown object type.
No object name.
Object coordinates error.
No specified subwindow.
Some error in object function.
See more about MT4:
Error codes in MT4
Related Topics:
----------- EDUCATION --------
-----TRADING METHODS -------
--------- FOR TRADERS --------
------------ OTHER -------------
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