I have a main report w/data based on multivalue parameter being displayed in tablix and it works fine. I now want to add a subreport with different stored proc but with same multivalue parameter of main report. I've placed the subreport in the main report's tablix row group footer and assigned the subreport's multivalue parameter = join(parameter.~.value,",") and a bevy of other combinations and continue to yield "Error: Subreport could not be shown." Any suggestions or solutions will be immensely appreciated. Thank you in advance.