An on-boarding management entity may be implemented to manage interconnectivity among various enterprise entities and various subscription managers. A subscription manager identifier associated with each of the subscription managers may be used to map different enterprise entities to specific or range of subscription managers. In the event of additions or replacements of subscription managers, a business logic may be employed via a rules engine in order to internally map a subscription manager identifier of the desired subscription manager to the respective subscription manager. The business logic can also be employed to map and relay callbacks and notifications received from the subscription managers to respective enterprise entities.