E-commerce growth is fundamentally tied to operational simplicity. Complex systems often become bottlenecks, creating a cascade of errors and communication failures that can stymie growth. For example, when refund operations lack streamlined procedures, they cause delays that harm customer experience and overburden teams, jeopardizing fulfillment SLAs. This complexity leads to inefficiencies and increased costs over time. To prevent this decay, a robust operating model is crucial—one that assigns clear ownership, sets explicit SLAs, and conducts routine audits to maintain operational clarity and efficiency, paving a sustainable growth path.