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<div style="background-color: #E3FBE5;">'''Note''': To learn more about how sessions setting affects charts, read [[What Affects Chart Timestamps|this article]].</div>
<div style="background-color: #E5F6FF;">'''Important information''': When the software requests historical data from a data source’s server, the returned data is stored locally in the database (TradeStation data can be saved or not depending the respective setting). If a data vendor doesn’t return historical data for a reason, so-called “empty interval” is recorded in the database, so MultiCharts will not fill the gap when the missing data becomes available on data source end (you can check what data is already stored in the database by making a right-click on the symbols in QM and selecting "Edit Data..."). In this case customers should reload data manually in MultiCharts: new historical data for the specified period will be requested; previously stored data and empty intervals will be replaced by new data from server in the local database.</div>
If there is a gap on data series when custom futures is plotted, please make sure the data is available for the individual contracts used for this custom futures.
==Absence of Real-Time Data==
