The Date Range gadget allows you to select a date based on a fixed or sliding date range for the selection.
Fixed Date
When the Date Range gadget opens, it first displays the Fixed Date option, meaning that the date or date range is based on a specific date. This option is used most often, particularly in reports that are scheduled ASAP or saved as a templates.
If you are viewing the gadget’s Fixed Date selection window, the Depends on the Report Run Date Helper displays. You can use this helper to select a sliding date instead.
Sliding Date
The sliding date depends on the report run date. It is most useful for reports that are scheduled to run periodically. It allows the report to select a date range based on the date that the report runs, so a scheduled report may run monthly, pulling data for the previous month’s activity, without ever having to make changes to the report’s selection criteria.
If you are viewing the gadget’s Sliding Date selection window, the Specific Date Helper displays. You can use this helper to select a fixed date instead. 
Related topics
Depends on the Report Run Date Helper
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