Thanks a lot.. I solved this Problem by setting the calculation Type in Subreport(Others)/Subreport Return Value AND in the description of the Variable. But now I have another Problem.. I have a Subreport in the detail area. This Subreport gives a return Value to the Main Report. Now I want to give this Value to the Subreport in the next detail (of the next Dataset). I Want to give so data from a subreport to the main Report to the subreport.