Steps to locate feeder class from Application name

Hi,

I want to know how to locate feeder class used in a POWL application.

From Portal, I get the application name & configuration name.

And using this two inputs I want to know steps to find out following: -

1. WD ABAP component used

2. Corresponding Feeder class

Can you please provide me with detailed steps to do it?

Thanks,

Amey