The rise of subscription services has disrupted traditional supply chains by shifting focus from one-time transactions to recurring fulfillment. Whether it's monthly boxes, groceries, or digital products, supply chains must now operate on a predictable, cyclic schedule. This requires precise forecasting, real-time inventory sync, and reliable last-mile logistics. The definition of supply chain management is expanding to include long-term relationship management, customer retention logistics, and churn-prevention strategies. Success is not only measured by on-time delivery but by sustained satisfaction and consistency. Supply chains now support experience-based business models, evolving into retention engines rather than just delivery networks.