Let us assume that some money is deposited to the admins account when a user signups . Now the same user when goes to buy a item he gets some kind of discount for ex:- the item he wants to buy costs $500 but he gets $100 discount so he has to pay only $400 . Now the remaining $100 will be diposited from admins account to the sellers account . so the seller gets $400 from buyer and $100 from admin in a single transaction .
Is it possible in Paypal ? Your ideas/suggestions would be helpful. Please do it.