The Subscription object provides a persistent service-level relationship that can survive changes to the underlying commercial assets, device arrangements, contract terms, or identifiers. That makes it suitable for tracking the continuing lifecycle of a telecommunications service as customers modify the service over time. Assets can change as fulfillment changes the installed state, while the subscription remains the higher-level continuity context. The recommended configuration follows the native Communications Cloud responsibility boundary: catalog and CPQ determine the commercial request, while Order Management, OmniStudio, or the relevant platform service performs the downstream processing required by the use case. A Service Account identifies where or for whom service is delivered, and a Contract Line Item represents contractual terms. Neither is the primary object for the end-to-end lifecycle of the subscribed service itself. Avoiding duplicate logic is important because repeated rules across catalog, integration, and orchestration layers quickly become inconsistent as products evolve. The selected approach keeps the authoritative data in the correct object model, supports later lifecycle operations, and minimizes additional processing or manual intervention. It should be implemented declaratively wherever the platform feature can express the requirement, with customization reserved only for behavior that genuinely falls outside the supported framework.

Study Guide Reference:Subscriptions; service lifecycle; Assets; contracts; MACD; subscriber management.