Hello,
i have to set up a shop where the customer have to go straight through the shop when he put 1 piece in the basket. He should not be allowed to buy more items in one session. Everytime he is buying an artikel he has to fill out the form because i need the personal datas for every article.
My question:
Is this possible to change the code in oscommerce so that one shopping session is always with one article?
Thank you a lot for any hint!

rolf