"Add to Cart" Parameters

Bypasses the cart entirely. Goes straight to checkout.

Useful as a complement to a “View Your Cart” link. (ie. a “Checkout Now!” link)

Can be sent to a customer to have them update their account info, including passwords and credit card.

Useful for subscriptions that have expiring credit cards. Send your customer something like http://yourdomain.foxycart.com/cart?cart=updateinfo and they can update their own info.