For a low-volume, high-variety product line, shipping from a central distribution warehouse typically results in the highest level of customer service and the lowest total distribution costs. This approach allows the company to consolidate inventory in a single location, facilitating better inventory management and control. A central warehouse can stock a wide variety of products, ensuring availability and quick response to customer orders. It also allows for more efficient use of transportation resources by consolidating shipments, which reduces transportation costs.References:
* "Distribution Planning and Control: Managing in the Era of Supply Chain Management" by David F.
Ross
* "Designing and Managing the Supply Chain" by David Simchi-Levi, Philip Kaminsky, and Edith Simchi-Levi

According to the APICS CSCP - Supply Chain Management Certification, customer fill rate is the most stringent measurement of fill rate to support product availability. Fill rate is a measure of how well a supplier or a distribution center satisfies customer demand for a product or a service. Customer fill rate is calculated as the percentage of customers who receive all the items they ordered in the quantity they ordered within the agreed time frame. Customer fill rate reflects the overall performance of the supply chain in meeting customer expectations and satisfaction.