Asset-Based Ordering (ABO), also known as Subscription Ordering, is used to sell tangible assets or subscriptions for services delivered over a period of time (e.g. cell phone service, cable service, office Wi-Fi). The ABO functionality provides the ability to create and store customer assets in CPQ. Assets can be created, modified, suspended, resumed, renewed, and terminated. Customers can use ABO in conjunction with System Configuration, and they can use REST APIs to integrate with external applications.