https://www.mql5.com/en/articles/2555
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The checks a trading robot must pass before publication in the Market
- www.mql5.com
Before any product is published in the Market, it must undergo compulsory preliminary checks in order to ensure a uniform quality standard. This article considers the most frequent errors made by developers in their technical indicators and trading robots. An also shows how to self-test a product before sending it to the Market.

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I made a MT4 EA, it has been working on back tests and as well as on live accounts. But whenever I try to submit my EA to the market, it always shows error "No trading operations".
I'm not sure what the reason could be if it works normally on live accounts. I hope someone could help me, I could send the code if needed. Thank you.