I'm trying to add a subreport to a grouped report. I added retrieval arguments to my subreport. When I added the subreport to the grouped report, I filled in the criteria with fields from the grouped report (including the ID_Num that the report is grouped on). When I try to run the report, it tells me that "Nest Arguments are incorrectly specified". I don't know what that means or how to correct it.
Can you tell me how I can nest the reports and have them linked together so that the subreport will only reflect the data for the group it is in?