Have a search for error 130 on the site, you'll find plenty of information on past threads.
Remember, your product will have to be compatible with all brokers, not just the one you are testing on.
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Ive been trying to send an EA to the market and get it published by a moderator. It doesn't show any errors in tester on the tickmill demo account I use. It doesn't show any error when put it through automatic validation. But why is the moderator getting an ordersend error 130 on their tester?
So I guess I'm stuck on how I debug my EA. As because I don't have access to the same tester the moderator is using how can I find bugs and fix them.
Anybody got any suggestions on how to make sure your EA works on many different brokers? Or how I get around this testing problem?