[A] Custom Date Range is available under Sales Order, Sales Invoice, Purchase and Quotations in the Business Intelligence module.
[B] In the Business Intelligence module, go to the tab for which you wish to see data.
[C] On the left side, click on the menu to select time period.
[D] Select the option of "Custom Dates" at the bottom.
[E] Select the Start Date and End Date as required. Now the data is displayed accordingly.
Keywords: Custom Date, BI Reports