marauderfx: Thus, when backtesting, if I put in 1.0 in "Lot Size" (for 100K units)
That makes no sense. The size of a lot is determined by the broker and server you're connected to. You can NOT change it. You should not be inputting it. Get it from market info and find the rest of your code.

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Seeking help;
Live MT4 account stated in notional unit size (ie, instead of 1 lot, trades stated as 100K). However, when programming in strategy to backtest, MT4 states "Lot Size."
Thus, when backtesting, if I put in 1.0 in "Lot Size" (for 100K units) it is being read as 1.0 units instead of 100K or 100000. When I input 100K in "Lot Size", error reads "We have no money."
Thoughts on a work around? Want to bring the strategy live (been testing on a demo for 6 months) but this 'translation' error is cause for concern.