Amazon FBM
Amazon FBM (Fulfillment by Merchant) is the shipping model in which the seller handles Amazon orders themselves: they store the goods in their own or external warehouses, pick, pack and ship them at their own expense. Amazon merely provides the marketplace and order processing, while the entire logistics stays with the seller.
Amazon FBM stands for "Fulfillment by Merchant" and refers to the shipping model in which the seller fully handles the logistics of their Amazon orders themselves. Amazon only provides the sales platform, the reach and the payment processing; the seller, however, stores, picks, packs and ships the goods – from their own warehouse or through a contracted logistics provider. Unlike "Fulfillment by Amazon" (FBA), the goods therefore never enter an Amazon fulfillment center but remain under the seller's control until shipment.
FBM is therefore also called the "Merchant Fulfilled Network" (MFN) or simply self-fulfillment. The seller bears full responsibility for stock, packaging, delivery time and returns handling, and must meet the performance metrics set by Amazon – such as on-time shipment confirmation, valid tracking and low cancellation rates. FBM is thus the more flexible but operationally more demanding counterpart to FBA, and it is attractive for product ranges that fit poorly into a third-party fulfillment network.
At a glance
- FBM = Fulfillment by Merchant: the seller handles Amazon orders themselves
- Goods stay in the seller's own or contracted warehouse – not in Amazon fulfillment centers
- Full control over stock, packaging, shipping and returns stays with the seller
- Counterpart to Amazon FBA; often combined (hybrid fulfillment)
- Amazon's performance metrics (shipping time, tracking, cancellation rate) are binding
What exactly is Amazon FBM?
With Amazon FBM, the seller sells their products on the Amazon marketplace but fulfills the orders themselves. As soon as a customer orders, the seller receives the order via Seller Central or a connected interface and is from that moment solely responsible for fulfillment: they take the goods from stock, pack them, choose a carrier, generate the shipping label, and report the shipment confirmation and tracking number back to Amazon on time. Customer inquiries about shipping and the handling of returns are also the seller's responsibility.
In this model, Amazon remains an intermediary and payment service provider: the marketplace presents the offer, processes the payment and collects its selling fees, but does not intervene in the logistics. FBM is therefore closer to classic mail order than FBA – the seller uses Amazon's reach but keeps their established warehouse and shipping infrastructure.
FBM, MFN and SFP – the terms
In the Amazon world, several terms describe self-fulfillment. "FBM" (Fulfillment by Merchant) and "MFN" (Merchant Fulfilled Network) mean the same thing: the seller fulfills orders themselves. To be distinguished from this is "Seller Fulfilled Prime" (SFP) – a special form of FBM in which the seller still ships themselves but meets strict Prime criteria (such as same-day shipping and weekend delivery) and, in return, may display the Prime badge on their self-fulfilled offers. SFP thus combines the control of FBM with the visibility of Prime.
How the FBM process works
The FBM process begins when an order comes in via Amazon. The order becomes visible in Seller Central or – in a professional operation – is automatically imported into an inventory management or ERP system. There, the stock is checked and reserved, a picking order is generated, and the goods are consolidated and packed at the packing station. The seller then creates the shipping label, hands the shipment over to the carrier, and confirms the shipment with a valid tracking number within the deadline set by Amazon.
Compliance with the service metrics is decisive: Amazon measures on-time shipment confirmation, valid tracking, cancellation rate and response times. If these requirements are violated, the seller risks worse placement, loss of the Buy Box or, in extreme cases, account suspensions. Returns are likewise the seller's responsibility – they receive returned goods, inspect them, refund or replace, and restock sellable items. Cross-channel stock synchronization in particular is central so that an item sold on Amazon is not simultaneously sold again in the seller's own shop.
Why Amazon FBM makes sense – benefits and limits
FBM is worthwhile above all when a seller already runs a functioning logistics operation and wants to use it for the Amazon channel as well. The seller retains full control over packaging and brand experience, can use inserts and custom boxes, and avoids the storage and fulfillment fees of FBA. Especially for bulky, heavy, very low-priced or slow-moving items, FBM is often cheaper, because with FBA precisely such products cause high storage costs.
The limits lie in the operational effort and in visibility. Without the Prime badge, FBM offers are disadvantaged in the competition for the Buy Box, because Prime customers preferentially see fast FBA or SFP shipping options. In addition, the seller bears the entire risk for shipping delays, lost shipments and returns – and must permanently meet the strict performance requirements. FBM is therefore not a "budget model for beginners" but presupposes a resilient shipping organization.
Combining FBM and FBA (hybrid fulfillment)
Many sellers use FBM and FBA in parallel and assign each product the more economical model. Fast movers with high Prime demand run through FBA to secure visibility and fast delivery; bulky, expensive or rarely sold items stay in FBM self-fulfillment. FBM also serves as a buffer when FBA stock is sold out – so an offer stays available for delivery instead of disappearing from the marketplace. This mixed strategy requires clean, cross-channel inventory management.
Amazon FBM in the ERP system
For a professional FBM operation, connecting Amazon to an ERP or inventory management system is the decisive lever. Via the Amazon Marketplace interface (Selling Partner API), orders flow automatically into the system, are recorded there as orders, posted against stock and channeled into the regular order processing. The ERP generates the picking document, delivery note and shipping label, posts the goods issue and reports the shipment confirmation including tracking number back to Amazon automatically – without media breaks and on time.
The greatest benefit lies in stock synchronization across all channels. If a seller sells the same items on Amazon, in their own shop and on additional marketplaces, the available stock must be current everywhere at the same time; otherwise overselling threatens, along with the associated cancellations that Amazon penalizes. An ERP keeps the stock centrally and pushes changes back to all channels as quantity updates. This makes the labor-intensive FBM shipping scalable, without every order having to be processed manually in Seller Central.
Systems and multichannel integration
The Amazon integration happens either via native connectors of the ERP or via specialized multichannel tools that sit as middleware between the marketplace and inventory management. Important here are a reliable return of tracking data, an automatic reconciliation of returns and a clean mapping of the Amazon items (ASIN/SKU) to the seller's own item master. The more channels a seller serves, the greater the advantage of a system that consolidates FBM, FBA and shop orders into a single order and inventory model.
Distinction: FBM vs. FBA
The core difference between FBM and FBA lies in the question of who fulfills the logistics. With FBA (Fulfillment by Amazon), the seller sends their goods in advance to an Amazon fulfillment center; Amazon stores, picks, packs, ships and takes over customer service as well as returns handling. The offers automatically receive the Prime badge and benefit from fast delivery and a better Buy Box chance – in return, storage and fulfillment fees apply, and the seller gives up control over packaging and stock.
With FBM, the seller keeps the entire logistics and thus the control, saves the FBA fees, but bears the operational effort and, without SFP, is disadvantaged in the Prime competition. Simplified: FBA sells convenience and reach in exchange for fees and loss of control; FBM sells control and cost sovereignty in exchange for operational effort. The choice depends on product characteristics, margin, shipping volume and the existing logistics – which is why many successful sellers use both models in parallel.
Example
Example: furniture retailer ships bulky goods via FBM
A mid-sized retailer of solid wood furniture sells its tables and shelves through its own online shop and additionally on Amazon. The products are unsuitable for FBA: the bulky, heavy items would cause high storage fees in Amazon fulfillment centers, and shipping requires a freight forwarder rather than a parcel service. The retailer therefore consistently chooses FBM for the Amazon channel and ships the furniture from its own warehouse with a specialized freight forwarding provider.
So that the additional channel does not lead to overselling, the retailer connects Amazon to its ERP via the Selling Partner API. Orders run automatically into the inventory management system, stock is kept centrally and reconciled in real time with the shop and Amazon. The system generates the delivery note and freight dispatch advice, posts the goods issue and reports the tracking back to Amazon on time. For its fast-moving small items – care products and accessories – the same retailer uses FBA instead, to benefit from the Prime badge there. In this way it combines both models product by product.
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