Hi Sudhakar,
Please check out the following link:
https://help.sap.com/erp2005_ehp_06/helpdata/zh/4c/7e05c2aa9f4f0580ce103cb3745c3f/content
I think this datasource extracts information from tables COSP/COSS. Is there information in these tables?
Please, also try to debug at RSA3 as Ramanjaneyulu says.
Best Regards,
Carlos