OLAP Hierarchies, how to use in BO

Hi Experts,

I have created an Universe on top of a SAP BI Query and that query is having a 0Material Hierarchy, I got Hierarchy as L01, L02,L03,L04,L05,L06 and thease hierarchies containing class is added into Hierarchies by going into Tools-->Hierarchies added ( Material class containing all L0..).

When i run WebI report with combination of these hierarchies, i don't find data available in WebI report, Could someone guide me how to resolve this issue.

Regards,

Suresh