You can ask the client about all the technical particularities incl the symbol specification (is it allowed by the broker to trade his symbol or not) and some others. Because it is totally impossible to say something without any details.
The very first question that customers hear in such cases is: what's in the logs?
I have ensured that all the necessary settings are in place, including enabling algorithmic trading. Despite this, the EA still fails to initiate any trades for the client.
Have you looked at the logs?
Few possibilities:
- They're using a lot size which isn't permitted for their account size and leverage
- They're using a trading volume which is below the minimal specification allowed on that market, or above the maximal
(Tell customer to go to Market Watch, right click the symbol, click specification, and all the info should be there)
- They set invalid TP or SL
- They set the wrong broker Filling type (if the EA executes trades with the old request structure)
Few possibilities:
- They're using a lot size which isn't permitted for their account size and leverage
- They're using a trading volume which is below the minimal specification allowed on that market, or above the maximal
(Tell customer to go to Market Watch, right click the symbol, click specification, and all the info should be there)
- They set invalid TP or SL
- They set the wrong broker Filling type (if the EA executes trades with the old request structure)

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Hello MQL5 family. I recently sold an Expert Advisor (EA) to a client, which has been working perfectly for other customers. However, for this particular client, the EA is not executing any trades.
I have ensured that all the necessary settings are in place, including enabling algorithmic trading. Despite this, the EA still fails to initiate any trades for the client.
Are there any other settings or factors I should look into that might be causing the EA to not function as expected on their end?