MQL4 ERR_NOT_ENOUGH_MONEY
MQL4 error 134 not enough money maps to ERR_NOT_ENOUGH_MONEY: not enough money. The server rejected the trade because the account did not have enough free margin for the requested symbol, volume, and order type. Capture GetLastError immediately after the failed call, correct the cause, and retry only when the condition can change.
Open the Coding Agent, then choose MQL4 from the language menu.
#property strict
#property script_show_inputs
input double Lots = 0.10;
input int Slippage = 3;
void OnStart()
{
if(!IsTradeAllowed())
{
Print("Trading is not currently allowed or the trade context is busy.");
return;
}
RefreshRates();
double price = NormalizeDouble(Ask, Digits);
ResetLastError();
int ticket = OrderSend(Symbol(), OP_BUY, Lots, price, Slippage,
0, 0, "diagnostic", 0, 0, clrNONE);
if(ticket >= 0)
{
Print("Order opened. Ticket ", ticket);
return;
}
int error_code = GetLastError();
Print("OrderSend failed. error=", error_code,
" symbol=", Symbol(), " lots=", DoubleToString(Lots, 2),
" ask=", DoubleToString(price, Digits));
}The official MQL4 runtime table names error 134 ERR_NOT_ENOUGH_MONEY and defines it as “not enough money.” The server rejected the trade because the account did not have enough free margin for the requested symbol, volume, and order type.
The error number is evidence about one failed call, not a diagnosis of the whole EA. Read the API sentinel first, then call GetLastError immediately because that function returns the current _LastError value and resets it.
Start with the inputs and external state that existed at the failure point. A later log entry or a successful call can overwrite the useful context.
Do not resend the same volume immediately. Recalculate free margin and volume first; retry only if the sizing rule now passes without increasing the intended risk.
Keep the original trading and risk rules intact. A workaround that widens stops, increases volume, changes an account setting, or ignores a failed return value can hide the symptom while changing the system.
| Check | Action |
|---|---|
| Requested lots require more margin than the account has free | Calculate a smaller valid volume and reject the trade when the margin check fails. |
| The EA uses a stale balance, equity, price, or margin assumption | Refresh account and quote inputs immediately before sizing the order. |
| Symbol contract size, leverage, or margin mode differs from the test setup | Read the live symbol and account properties instead of copying test assumptions. |
| Other open positions or pending orders already consume margin | Include existing exposure in the sizing rule and do not increase risk to force acceptance. |
This bounded script checks terminal permission, refreshes the quote, checks the OrderSend return value, and logs the exact request if the server rejects it. Add an account-specific margin calculation before using it as trading logic.
The example improves validation and logging. It does not prove the operation will be accepted by a broker or behave safely in live trading.
#property strict
#property script_show_inputs
input double Lots = 0.10;
input int Slippage = 3;
void OnStart()
{
if(!IsTradeAllowed())
{
Print("Trading is not currently allowed or the trade context is busy.");
return;
}
RefreshRates();
double price = NormalizeDouble(Ask, Digits);
ResetLastError();
int ticket = OrderSend(Symbol(), OP_BUY, Lots, price, Slippage,
0, 0, "diagnostic", 0, 0, clrNONE);
if(ticket >= 0)
{
Print("Order opened. Ticket ", ticket);
return;
}
int error_code = GetLastError();
Print("OrderSend failed. error=", error_code,
" symbol=", Symbol(), " lots=", DoubleToString(Lots, 2),
" ask=", DoubleToString(price, Digits));
}Pineify can generate or revise one self-contained .mq4 file with MQL4-specific reference context. Its independent static checker returns MetaEditor diagnostics so you can repair source issues before testing in your own MT4 environment.
Open MQL4 Coding AgentStatic diagnostics do not prove runtime behavior, backtest results, broker compatibility, or live-trading safety.
Check the API return value before interpreting an error number from the log.
Call GetLastError immediately and record error 134, symbol, prices, volume, ticket, and terminal state relevant to the operation.
Calculate a smaller valid volume and reject the trade when the margin check fails.
Compile the revised source, then test with the same MT4 build, broker, symbol, account permissions, and market state.
ERR_NOT_ENOUGH_MONEY means not enough money. The code should still identify which API returned failure and log the inputs used for that call.
Requested lots require more margin than the account has free The EA uses a stale balance, equity, price, or margin assumption Symbol contract size, leverage, or margin mode differs from the test setup Other open positions or pending orders already consume margin
Do not resend the same volume immediately. Recalculate free margin and volume first; retry only if the sizing rule now passes without increasing the intended risk.
It reports the current _LastError value and resets it. Other operations can change the error state, so a delayed read may describe the wrong call.
Pineify can revise a self-contained .mq4 file, add validation and error logging, and return static MetaEditor diagnostics. It cannot prove broker acceptance, account permissions, market availability, or live execution.
Last verified against the linked official references on . Compile and test the final source in the MetaTrader 4 build, broker, symbol, and account environment you plan to use.
Define the requirement, inspect the generated source, repair diagnostics, and test the behavior in your own MT4 environment.
Open Coding Agent