Bill of materials report

Experts,

I would like to know if exist any report which shows bills of materials. When I run the report Product Designs – Where Used it says that there is not data available to display despite there are bills of materials on the system. To check if it was a report problem I ran Product Design data source to see just the BoM ID field and I got the same result.

Is it an error system or am I doing something wrong running this report?

Thanks.