0SCEM_1 , 0SCEM_2 and 0SCEM_3 - Data source extraction into SAP BW

Hi Experts,

Can you please suggest how to extract the data from the standard data sources 0SCEM_1 , 0SCEM_2 and 0SCEM_3 into SAP BW.

Kindly provide detailed of all the steps to be done.

I have the list of the steps to be configured but details of each of them are missing and as a result not sure how to  map BW profile to which even handler type and related things .

Please suggest.

Thanks