FIFO and FEFO: warehouse inventory management methods

A supply chain management perspective
by aBCD Consulting

What FIFO and FEFO are: definitions and basic principles

The FIFO (First In, First Out) method means that the first product to enter the warehouse is also the first to be picked and shipped. This system is based on the principle of chronological stock rotation and is particularly suitable for goods without short expiry dates. From a storage perspective, FIFO requires separate entry and exit points to ensure the correct flow of goods.

The FEFO (First Expired, First Out) method, on the other hand, means that the product with the nearest expiry date is picked first, regardless of when it arrived. It is the reference system for inventory management in any context where the priority is to prevent products from expiring and to ensure regulatory compliance.

Differences between FIFO and FEFO: a direct comparison

The main difference between FIFO and FEFO lies in the priority criterion: FIFO is based on the order in which goods arrive, while FEFO is based on expiry date.

With FIFO, rotation is linear and easier to manage operationally, with storage flows and entry and exit points that are easy to standardise. With FEFO, expiry dates must be monitored constantly and more advanced traceability systems are needed. FEFO is therefore more complex, but essential in sectors where product safety is a priority.

Advantages and disadvantages of FIFO and FEFO in logistics

FIFO offers intuitive inventory management, reduces the risk of obsolescence and simplifies operational flows through the warehouse entry and exit points. However, it does not automatically ensure expiry control, especially when batches have different dates.

FEFO allows precise expiry control, minimises waste and improves customer service quality, but it requires advanced IT systems and more structured procedures.

The choice between the two methods should take into account the type of product, the volumes handled and the level of stock optimisation already achieved.

When to choose FIFO or FEFO: criteria and sectors of application

The choice between FIFO and FEFO depends on several factors: the nature of the product, its shelf life, regulatory requirements and the warehouse’s level of digitalisation.

In general, FIFO is suitable for products with a long shelf life or not subject to strict health regulations, while FEFO is essential for goods with critical expiry dates. In both cases, proper design of storage areas and handling points is crucial to the method’s effectiveness.

Food and pharmaceuticals

In the food and pharmaceutical sectors, FEFO is the reference standard for safe, compliant inventory management. Batch traceability, waste reduction and compliance with current regulations make this method not only recommended but often mandatory. A storage system designed for FEFO, with dedicated entry and exit points and integrated traceability, minimises risks and ensures full control of the supply chain.

Other sectors: chemicals, retail and manufacturing

In the chemical sector, the choice between FIFO and FEFO depends on the type of substances handled and the applicable regulations. In retail, FIFO is often sufficient for non-perishable products, ensuring effective stock optimisation without excessive operational complexity. In manufacturing, FIFO is frequently used for raw materials and components, to keep logistics costs down and ensure a continuous flow to production.

Implementing FIFO and FEFO in the warehouse: best practices and mistakes to avoid

To implement FIFO or FEFO correctly, it is essential to design layouts, entry and exit points and storage flows consistent with the chosen method. Signage, racking layout and operating procedures must all support correct stock rotation. The most common mistakes include a lack of batch traceability, no regular stock checks and insufficient staff training: without clear processes, even the best stock optimisation method risks becoming ineffective.

Supporting technologies and tools

Adopting a WMS (Warehouse Management System) makes it possible to automate FIFO and FEFO management, monitor expiry dates in real time and optimise picking tasks across pick points. Tools such as barcodes and RFID improve traceability and reduce the risk of human error, with direct benefits for stock optimisation and lower logistics costs.

Practical examples of optimisation

A food warehouse that adopts FEFO with an integrated WMS can drastically reduce expired products, improve batch traceability and optimise stock levels. Similarly, a manufacturing company that applies FIFO correctly can lower average inventory, free up space in storage areas and cut logistics costs through more efficient flows across entry and exit points.

FIFO, FEFO and other methods: an overview of the alternatives

Besides FIFO and FEFO, there are other inventory management methods that can be adopted depending on business needs. A proper preliminary analysis, taking into account volumes, product types, storage configuration and stock optimisation goals, makes it possible to choose the most suitable strategy and avoid standardised solutions that do not meet real operational needs.

A brief introduction to the LIFO method

The LIFO (Last In, First Out) method means that the last product to arrive is the first to be picked. In terms of physical inventory management, LIFO can lead to obsolescence risks and a build-up of older stock, with negative effects on logistics costs and storage efficiency. For this reason, it is only used in specific situations, mainly for accounting purposes.