Removing Items From a Cart

A customer might, at times, decide to remove some or all of the items in their remote shopping cart.

If the customer, however, wants to remove only some of the items in their cart, use CartModify and set the Quantity and CartItemId parameters appropriately, for example:

http://ecs.amazonaws.com/onca/xml?
Service=AWSECommerceService&
AWSAccessKeyId=[AWS Access Key ID]&
Operation=CartModify&
CartId=[cart ID]&
Item.1.CartItemId=U1I8M9790QFDO7&
Item.1.Quantity=15&
Item.2.CartItemId=U3K5GRHEXU6FHK&
Item.2.Quantity=18

This request sets the quantity of the item specified by the CartItemId to 0 thereby removing it from the cart.