Which planning function deals with the need for inventory adjustments at branch locations?

Distribution Requirements Planning (DRP) is focused on the management of inventory throughout a supply chain, specifically at various branch locations. It is designed to determine the quantity and timing of inventory needed at each location to satisfy customer demand while minimizing costs. This process takes into account factors such as lead times, inventory levels, and distribution constraints to optimize stock levels across different locations.

In the context of planning functions, DRP plays a critical role in ensuring that the right products are available in the right places at the right times. By analyzing forecasting data and current inventory status, this planning function allows for timely adjustments to inventory levels, thereby enhancing service levels and reducing excess stock or shortages at branch locations. This is vital in refining the logistics and overall supply chain efficiency, which ultimately contributes to better customer satisfaction and operational efficiency.

The other choices—Sales and Operations Planning, Demand Management, and Resource Planning—contribute to different aspects of the planning process but do not specifically focus on the inventory adjustments required at branch locations. Sales and Operations Planning is more about balancing supply and demand at a high level, Demand Management is primarily concerned with forecasting and influencing customer demand, and Resource Planning generally focuses on the allocation of resources to meet planned production and operations.