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Amazon announced that it will end the commingling method for its Fulfillment by Amazon (FBA) service in Europe as of March 31, 2026. Commingling involves combining products from different sellers into a single warehouse. After this date, sellers will be required to store their products separately, which will change the way FBA manages inventory and deliveries.
Why?Amazon decided to end commingling due to growing inventory management issues and shipping errors. Storing products from multiple sellers in one warehouse increased the risk of order fulfillment errors. The change aims to increase the accuracy and security of the order fulfillment process and give sellers greater control over their inventory.
For whom?All individuals and companies using Fulfillment by Amazon (FBA) in Europe will need to adapt their sales and inventory management processes to the new rules. This is particularly true for sellers who have previously used the commingling method, who must now switch to a separate product storage model. This change also impacts logistics companies that work with Amazon.
Background to the topicCommingling, or combining products from different sellers into a single warehouse, has been used by Amazon for many years because it allows for faster order fulfillment and lower storage costs. However, due to the increasing number of shipping errors and inventory management difficulties, Amazon has decided to discontinue this method in Europe. The change aims to improve service quality and increase satisfaction for both sellers and consumers.
Amazon has announced a significant change to its FBA (Fulfillment by Amazon) service, which is crucial for sellers in the European market. Under the new rules, as of March 31, 2026, Amazon will end the commingling method, which involves combining goods from different sellers into a single warehouse. What does this mean for sellers using FBA? What changes need to be made to comply with the new requirements?
Check out our e-commerce services to learn how to successfully adapt your store to Amazon's new guidelines.
What is commingling and why is Amazon ending it?
Commingling is a method of combining products from different sellers into a single Amazon warehouse, which allows sellers' goods to be stored together. This allows Amazon to fulfill orders faster and more efficiently, while also reducing warehousing costs. From the sellers' perspective, this was a way to save money and simplify the warehousing process.
However, Amazon has decided to end this practice in the European market due to increasing inventory management issues and the risk of shipping errors. This change will impact how FBA sellers store their products and how Amazon fulfills them.
What changes await sellers?
Starting March 31, 2026, Amazon will introduce two new inventory management models for FBA sellers:
- Non-Commingling – Sellers' products will be stored separately, meaning each seller will be responsible for their own inventory. This will increase quality control and simplify inventory management.
- Commingling only for Amazon-owned products – Seller products will be kept separate from Amazon-owned goods, but for goods sold directly by Amazon, commingling will still be used.
With this change, sellers will gain greater control over their inventory and will be able to avoid shipping errors , which were a common problem with commingling. At the same time, Amazon assures that the new system will further optimize the order fulfillment process while ensuring higher levels of security and accuracy.
How to prepare for change?
Sellers using FBA should start preparing for the changes now. Here are some key steps to take:
- Updated warehousing processes – This change means that sellers will need to prepare to store their products separately. This may require adapting the way they deliver goods to Amazon warehouses.
- Increased inventory control – Thanks to the non-commingling model, retailers will have greater control over their inventory. Therefore, it's worth investing in inventory tracking tools and optimizing inventory management to avoid out-of-stocks.
- Customize your shipping strategy – Depending on where your inventory will be stored, sellers may need to customize their shipping strategies to Amazon warehouses in different countries. This can require more logistics and planning.
- Education on the new rules – Amazon will provide sellers with detailed information on the upcoming changes. It's important to review the documentation available in your seller dashboard and revamp your operating procedures to comply with the new requirements.
If you want to learn more about inventory management, we invite you to check out our blog where you will find useful articles on this topic.
What does this mean for the e-commerce market?
This change will have a significant impact on Amazon sellers, especially those who have previously used the commingling model. Adapting to the new rules will result in greater logistical requirements , but also potential benefits such as better inventory control and a reduced risk of shipping errors.
Marcin Stadnik
e-commerce advisor
The author is a manager with extensive experience in e-commerce, sales strategy, and content marketing. He is a digital practitioner and consultant with over 15 years of experience in e-commerce projects, sales strategy, and online business development, as well as 25 years of experience in broadly defined distribution (offline and online). He specializes in creating and implementing effective solutions for online stores, supporting companies in developing their digital presence. He co-creates appropriate strategies for e-businesses, conducts audits, and oversees marketing activities—always combining analytical knowledge with market practice. He is the author and co-author of content published on the swiatcyfrowy.pl website—based on his many years of consulting, analytical, and operational experience. The materials created are intended to provide reliable, valuable knowledge that truly supports the development of online businesses. The content here is designed to address the real challenges and needs of companies operating in the e-commerce environment (the digital world).
