To implement support for preorders and backorders, make sure your layouts include the latest versions of the Shopping Cart and Product Details widgets .If your store includes the scheduled orders feature, make sure the Scheduled Order layout includes the latest version of the Scheduled Order widget. To determine if you are using the latest version, see Add, remove, and rearrange widgets and elements in a layout in Using Oracle Commerce Cloud. To replace a widget with the latest version, see Upgrade deployed widgets in Using Oracle Commerce Cloud.