The Hosted Exchange application is built with APS 2 technology, meaning its APS REST API is available through the APS bus. The specifications of the application's APS REST API are shipped with the application package.
Providers willing to migrate their customers from the Hosted Exchange module to the Hosted Exchange application and using the CloudBlue Commerce XMLRPC API to manage the module's resources will need to switch their on-premise systems to the application's APS REST API. The mapping between the module's XMLRPC API methods and the application's APS REST API methods is provided in the specifications.
To learn how to access the APS bus and manage APS resources, please refer to the Platform SDK Guide.