What happens in the background when a support message is created?

Dear Guru's,

Regarding solution manager 7.1

I have doubt that when a user is raising the support message through Help menu from the satellite system.

What happens in the background and how it is reaching the solution manager service desk ?

And how the reported by is populated ?

And how the other field's like sold-to-party,Ibase etc are populated. ?

Thanks and Regard's

Sai.