MT5 Error 4756 + Retcode 10016: Invalid Stops Are Blocking the Order
If you see MT5 error 4756 together with retcode 10016, the order is usually being rejected because the stop loss or take profit is invalid. In MQL5, 10016 means TRADE_RETCODE_INVALID_STOPS.
This usually happens when the stops are too close to the market price, not aligned with the symbol rules, or not normalized correctly for that instrument. MQL5 guidance and forum cases around 10016 regularly point to stop-distance limits and price normalization as the real cause.
That is why 4756 is only the outer error. The real reason is in the server retcode. If your system shows only “error 4756,” you waste time guessing. If it shows the rejection cause clearly, the fix becomes much faster.
For the full breakdown of MT5 error 4756 and its real causes, see the detailed guide on AlgoWay.
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MT5 error 4756 with retcode 10016 means invalid stops. Learn why stop loss or take profit settings are rejected and how to identify the real cause faster.
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