Important: WB_UserData will not be processed if placed in configuration section of sub report file.
WB_UserData=any user defined value
Any text and/or numeric value including WhizBase tags and functions
This variable has no effect on the execution of WBSP page by itself. However since it will be processed as any other WBSP system variable at the beginning of the session and its value can be read using $wbfn[userdata] it can be very useful. For example it can be used to get the system time on the beginning of the session (using $wbtimer tag) and to be compared to the system time on the end of the WBSP report to measure time needed for report to complete.