Report Parameter Properties Dialog Box, Advanced
Select Advanced on the Report Parameters dialog box to set a value that indicates whether this parameter directly or indirectly affects the data in a report. On the report server, this value is used to determine cache options for reports and report data.
Use Never Refresh with caution. On the report server, this value is used to help control cache options for report data and for rendered reports, and parameter options for snapshot reports. If you set Never Refresh incorrectly, you could cause incorrect report data or reports to be cached, or cause a snapshot report to have inconsistent data.
This value corresponds to the UsedInQuery attribute of the <Report Parameter> element in the Report Definition Language (RDL). For more information, see Report Definition Language Reference.