A shopper shops in a WebSphere® Commerce store as a guest
shopper, submits payment, and completes an order. During the same
session, the shopper then registers and logs on. If the appropriate
event listeners are enabled, WebSphere Commerce can merge the guest
shopper order to the registered shopper and notify Sterling Order Management that
the user of the order has changed. The merge allows the registered
shopper to view the order history for that order.