Hi Binod,
I am an ABAPer.. I checked the import and table parameters and there is no provision to enter the product. I am not sure how you people used this BAPI to create schedule lines is SPP.
Also, SAP uses get and set methods of class /SAPAPO/CL_TDL_LC_DS__DAO.
I am using the same approach now.
Regards,
Sachin Adak