Fill Rate
Also: Lieferfähigkeitsquote, Servicegrad (mengenbezogen), Volume Fill Rate, Line Fill Rate, Erfüllungsgrad, Order Fill Rate
AI-generated
The fill rate indicates what percentage of the ordered quantity or order lines can be fulfilled immediately and completely from available stock. It is a key metric for delivery capability in inventory and order management.
Key facts
- The fill rate measures what proportion of the ordered quantity or order lines can be fulfilled immediately from stock.
- Depending on the definition, a distinction is made between the volume fill rate (quantity-based) and the line fill rate (line-based).
- A declining fill rate indicates weaknesses in inventory planning, demand forecasting or vendor reliability.
- The fill rate is closely linked to safety stock – buffers set too low directly reduce the metric.
- Unlike OTIF, the fill rate does not take a time component into account, focusing exclusively on completeness in terms of quantity.
What is the Fill Rate?
The fill rate is a service metric that measures how completely incoming orders can be fulfilled from existing stock – without backorders, partial deliveries or waiting times. Depending on the measurement logic, it refers either to the ordered quantity (volume fill rate) or to the number of order lines (line fill rate). A fill rate of 95% therefore means that 95% of the requested units or lines were available for immediate delivery on the first attempt.
The metric is typically evaluated at order level, customer level or item level, and provides direct insight into how well safety stock levels and planning parameters are aligned with actual demand.
How is the Fill Rate used in practice?
In warehouse logistics, the fill rate serves as an early indicator of stock shortages and excess inventory risks. If the metric falls below a defined threshold, this signals either an inadequately set minimum stock level, a poor demand forecast, or supply-side delivery problems. Typical analysis scenarios include:
- Item-level analysis to identify chronic stock shortages for specific SKUs.
- Vendor comparison to measure the supply reliability of external partners.
- Periodic trend analysis to detect seasonal dips early and adjust planning parameters accordingly.
In conjunction with inventory controlling and demand planning, the fill rate helps to find the right balance between capital commitment and service level: excessively high stock levels tie up capital, while excessively low stock levels reduce the fill rate and jeopardize customer satisfaction and revenue.
What matters when interpreting the Fill Rate?
The fill rate is only meaningful when the measurement method is clearly defined. Whether you measure quantities or lines, whether you count partial deliveries as a success or a failure, and which point in time you use as the reference for availability (order receipt vs. agreed delivery date) all significantly affect the result. In practice, it is therefore essential to apply a consistent definition internally as well as with vendors and customers.
The fill rate should be distinguished from the OTIF value (On Time In Full), which additionally evaluates the punctuality of delivery. A high fill rate does not rule out late deliveries – conversely, OTIF can also be low even when deliveries are complete, if agreed time windows are not met. Both metrics complement each other and should be considered together.
Related terms
- ABC-Analyse
ABC analysis is a method for classifying items, vendors, or processes into three priority classes (A, B, C) based on their economic significance. It forms the basis for differentiated decision-making in warehousing, inventory management, and procurement.
- Absatzplanung
Sales planning refers to the systematic forecasting of future sales volumes for defined products, regions, or channels. It forms the foundation for all downstream planning processes in production, procurement, and logistics.
- Absatzprognose
The sales forecast estimates future demand for products or items over a defined period. It forms the basis for inventory, capacity, and procurement planning in logistics and purchasing.
- Bedarfsplanung
Demand planning refers to the systematic process by which a company determines what quantities of materials, goods, or resources are needed and when. It forms the foundation for inventory management, procurement, and warehouse planning.
- Bestandscontrolling
Inventory controlling refers to the systematic monitoring, analysis, and management of stock levels using defined key performance indicators. It connects logistics and procurement to reduce tied-up capital and ensure delivery capability.
- Bestandsführung
Inventory management refers to the system-supported administration and continuous updating of all warehouse and material stocks within a company. It forms the basis for planning, procurement and accounting – and ensures that the book inventory and physical inventory are in agreement at all times.
- Bestandsmanagement
Inventory management refers to the systematic planning, control, and monitoring of stock levels across the entire supply chain. The goal is to ensure delivery capability while keeping capital commitment and warehousing costs within economically viable limits.
- Bestandssicherheit
Inventory accuracy refers to the degree to which the book inventory and the actual physical stock in the warehouse match. High inventory accuracy prevents shortages, excess stock, and faulty replenishment decisions.
- Bestellpunktverfahren
The reorder point method is a replenishment procedure in which an order is automatically triggered as soon as the current stock level falls below a predefined reorder point.
- Cost-to-Serve
Cost-to-Serve refers to the total costs incurred to fully serve a specific customer, customer segment, or order. The metric consolidates all relevant cost components along the order fulfillment process and enables cause-based cost allocation.
- Disposition
Disposition refers to the operational planning and control of resources, quantities, and orders in logistics – for example in transport or materials disposition. It encompasses capacity assignment, scheduling, prioritization, and response to disruptions.
- Dispositionssoftware
Dispatching software is a software solution for the operational planning, control, and optimization of transports, routes, and resources in logistics. It helps dispatchers efficiently coordinate orders, capacities, and time windows.