Hi,
Before creating any Generic DataSource, please check in ECC table ROOSOURCE, e.g. with the following selection criteria:
- OLTPSOURCE = 0MAT*
- OBJVERS = D.
You will find a lot more Marerial related DataSources, mostly for Texts and Hierarchies. It's always advisable to have a look at SAP Help too.
Re. Classification you might want to take a look at the following SAP Notes:
- Note 306046 - Characters of classifctn - attributes in BW;
- Note 1460199 - Creating DataSource for article classifications.
Best regards,
Sander