resource- related billing

Hi,

I need to know about resuorce-related billing. As I find in the documents for my project, it's for consultancy services. I dont have exposure to this process, neither to the related SD transactions. It involves internal orders, time writing and personnel related data in HR too.It has both single and multi customer billing using a few enhancements.Could someone explain me the process and related transactions?

Rajesh Banka, if ur seeing this thread, I have already gone through another thread for a similar question(resource related billing), and I would like a more elaborate explanation for the specified details in my query.

Thanks and regards

Aparna