Why an EA works for some currancies and not others?

I have something weird going on. I have an EA which will run on some currencies, but not others. After each tick I recieve a comment in the top left corner of the currency chart, but only a few currencies work, others don't. InterbankFX if the broker and mini accounts are being used (both demo and real money accounts)

Here are the currency pairs which work:
AUD/USD, EUR/GBP, EUR/USD, GBP/USD, NZD/USD

Here are the pairs which do not work:
AUD/JPY, AUD/NZD, CHF/JPY, EUR/AUD, EUR/CAD, EUR/CHF, EUR/JPY, GBP/CHF, GBP/JPY, NZD/JPY, USD/CAD, USD/CHF, USD/JPY

Any ideas? I have the EA set to collect an use the current pip value as an input and it seems to work fine on non mini accounts (on a separate standalone computer with only one registered account). I wonder if it has something to do with the mini accounts, or the fact that two accounts (both demo and real) are run from the same computer/platform. I'm really stumpted on this one.

Any ideas?

No idea. Post the EA.

Sometimes the 2 decimals (yen crosses) vs 4 decimals play a role in the EA not working.. Also... look at the journal.. it generally will tell you why the the EA is not generating trades.

Also, another thing to look at is that IBFXand some other brokeres add the letter m to the end of the currency pair to note it is a mini account. So it actually appears as EURUSDm. This could be a problem for your EA.

the crosses are called different thing on a mini with InterbankFX

GBPUSDm vs GBPUSD

If the EA uses the instrument in its code the problem may be there

Great minds think alike ....

You said it better than I did... LOL

Thanks all.

It's not the 2 vs 4 decimal point problems as that is already accounted for. Also it's not the small (m) problem either. That is also accounted for. Hummm..... I'll look at the journal if I get the chance.

Sometime coders put in a piece of logic that checks the number of open trades and allows nothing to happen if a certain number is exceeded. Again this is pretty tricky with no source. You will probably have to step thru the code to solve this one.




PS did you write this or get it from someone else? The Pairs it trades may be hardcoded into the EA... the pattern of the pairs that it works with hint that this might be true

I coded this one myself. Unfortunatly I can't post the code here because the EA is written based on the pricipals of the private forum, and it would be a violation to share that on the public side. That sort of sucks I know. The pairs it trades is not hard coded into the EA. (The code is posted in the PF).

Oddly the EA works perfectly for me, but it doesn't for one of the other PF members, so I'm trying to figure it out for him.

I just wanted to follow up here. I had a statement in my EA which read:

Value = MarketInfo(Symbol(),MODE_TICKVALUE);

only problem was Value was declared as an integer (int) not a floating point (double).

OK problem solved. Maybe this will help somebody?

Also I would think, with very rare exception, that one would usually be better declarnig a variable as a double as opposed to an integer. Does this make sense?