Collecting inputs for Pricing and CIN configuration

Here there different type of purchasing

Domestic, Import(adv payment thru chk, and customs clearance no Lett of credit), subcontracting, servicing

How to collect the pricing procedures, i asked my client to give the structure of pricing but they couldn't understand what i am asking for

can any one tell me the steps in collecting these pricing procedures

For CIN also i need to collect..

Pls guide me..