Broadleaf Commerce Discussion Forums

Hello,
Our products are "built to order", so I am looking to add a "Receive Date" to the order item so that the customer can input their expected "receive date" per item. I am anticipating that the UI placement would be in the "cart" form where the quantity can be updated, and also in the multi-ship form. Any quick pointers on which classes I should look to extend to accomplish this?

Thanks,
Daniel

As far as manipulating the cart check these classes out: CartStateRequestProcessor, ValidateAddRequestActivity, OrderItemImpl -> DiscreteOrderItemImpl, OrderItemAttributeImpl,