Regarding the down payment configuration

Hi All,

I am configuring the steps for customer down payment process in SD

few clarification i required , when creating a sales order

when creating a sales order , line 10 is normal (finished goods)  - item category is TAN

                                               Line 20  should be the down payment - what should be material type .  where i do not want to enter the order quanity Pricing and plant should get determined or not.

Please give me your inputs , when i check the TAO item category , it is pricing relavent.

Thanks

Gopalkrishna