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'''One should not expect 100% identical results between backtestedbacktesting, calculating in real-time (forwardtestingforward testing) and auto trading charts. The results may be close but it is almost impossible to make them absolutely the same'''.
== Difference in Order Execution ==
=== Synchronous Mode ===
In SA mode when you click the button to toggle automation on, the starting point of an order generation on chart A is shifted from the beginning of the chart to the bar before the current bar and the strategy is recalculated. Meanwhile, if you create an identical chart B nearby to see the strategy calculating in real-time (forward-testing) and you expect to see at least the first order triggered at the same time on the same bar as on chart A, you should perform a calculation to find out the correct data range setting for chart B so that both charts' strategies have the same order generation starting points. If the starting points are different, then the results are also different.
<div style="background-color: #E3FBE5;">'''Example''': Let's say a signal applied to chart A contains only 1 line: '''buy next bar at close-15 limit;''' and the MaxBarsBack is set to '''50'''. It means the script will be be calculated only at close bar # '''51''' to place the guaranteed-to-be-executed '''buy limit''' at the open of the bar, that is, bar # '''52''', when the chart is created and the script is applied. Assume that this is a '''1 minute''' chart, the current bar # is '''122''' and its time (closing time of the bar) is '''11:02'''. The current bar is not closed yet, so the script cannot be calculated on the current bar. You enable automated execution by clicking on the SA button. The order executed historically on bar # 52 is wiped from from the chart and the script is recalculated. To emulate the same situation on another chart B you will need to create identical chart right after you enable automated exectuion on chart A, but the bar # '''1''' of the char B should be the bar with time = '''10:10''' ('''11:02 (bar # 122) - 1 ''(the bar that is previous to the current bar, where the script was calculated for the first time to generate the order on chart A)'' - 50 (MaxBarsBack) - 1 (current bar)'''. In other words, the bar # '''121''' on chart A and the bar '''51''' on chart B should be the same bar ('''10:10''').</div>
<div style="background-color: #E3FBE5;">'''Note 1''': The opening tick of the current bar is already passed, so the order execution prices will differ on the charts.</div>
