This document discusses the importance of an integrated approach between marketing and supply chain operations for efficient e-commerce fulfillment. It notes that without integration, organizations can struggle to fulfill orders efficiently, leading to delayed shipments, increased costs, and poor customer experiences. The document defines demand and supply integration as tying together marketing initiatives with supply chain management to make informed decisions. It provides examples of how lack of integration can result in unnecessary costs and issues. It also discusses challenges of omnichannel fulfillment and key metrics for measuring fulfillment effectiveness. The importance of an integrated IT system to provide visibility across functions is also covered.