A notification from the broker, in an Instant Execution environment, indicating that the price you requested is no longer available and offering a new price. Essentially, a requote means “the broker couldn’t fill your order at the requested price, so do you accept this new price?”. Requotes typically happen in fast-moving markets or periods of low liquidity, and they are mainly an issue with dealing desk brokers or trading platforms using instant execution. For example, your EA tries to buy EUR/USD at 1.2000 with zero slippage allowed; by the time the order hits the broker, the price is 1.2005 – the broker may requote: “price moved to 1.2005, do you accept?” If the EA is not programmed to handle that, it may simply miss the trade. Many EAs avoid requotes by either allowing slippage or by using market execution accounts. If you encounter requotes, consider switching your robot to a market execution mode or increasing the allowed deviation. Requotes can be particularly detrimental to scalping or news-trading EAs where speed is everything.

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