Define Product Type per UNSPSC code

Hi experts,

We are using SRM Extended Classic Scenario (v7.01); the UNSPSC codes are replicated from R/3. For a requirement, we need to specify the product type between material or service for UNSPSC codes. Via transaction comm_hierarchy, the Product Type is currently not defined in SRM.

Background: for Intrastat purposes, services needs to be excluded in the report.

So, how can we define the product type per UNSPSC code?

Thanks!