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MQL4 Error 4055 – Failed Order Closure Explained

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Error 4055 MQL4 can occur in MetaTrader 4 when a script or EA attempts to submit an order in the Forex market, maybe to close a position or open a new one, and the submission process is unsuccessful. This error is not rare and can be caused by various things such as a price discrepancy between the trading terminal and the broker’s server, connection problems, or invalid order settings. As a result, the order transmission is unsuccessful and the order fails to be closed. It is important to review the parameters of the order and analyze the trading environment to ensure the order will be executed correctly. As a trader, identify and address any potential issues before attempting to enter or close an order in order to avoid the Error 4055.