Re: Derived table @prompt

For some reason @prompt is not working in derived table.It works in Universe filter. Originally i gave @prompt (@Prompt('Enter values for Rpt Year Month:','N','Folder\MeasurePractice\Rpt Year Month',Mono,Constrained) )  with all parameters...but according to SAP note 1888841.

i removed folder/objectname from parameter and used 

@Prompt('Enter values for Rpt Year Month:','N',' ',Mono,Constrained)

I also tried using parameters and used @prompt(new _param).

I am getting conversion error....how do i resolve this and use @prompt in my derived table.Please see screenshot.