I am creating a report using Design View (New Report>Design View) and I select the table where the object's data comes from. However, I have other tables I would like to use in the report. When I try to add fields from different tables (using the control Source under properties; ex:/ =[Project Expenses]![NPI]) I keep getting a prompt to "Enter Parameter Value." I don't understand why/how to get data from other tables into my report.