Drill through from Analysis Studio to Relational data in Report Studio

I have big problems to make a drill through functionality to work.
I have created a report in Analysis Studio, which uses a SSAS cube.
The target report is a list report using a Relational data with a parameter [Produktgruppsbeskrivning] = ?p_Produktgruppbesk?

I have created a drill-through definition and given the parameter a value from the cube.
But the drill through doesn´t work. I can imagin that the parameter value is not matching the relational value, since I am using a SSAS cube.

Have anyone any ideas what I can do to make the parameter value (from the cube) match the relational data value?

Best regards,

Try this…

Drill through from a cube (Analysis Studio) to relational Source (Report Studio) on Time dimension