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FBA – Fulfilment by Amazon explained.

Fulfillment by Amazon – warehousing and shipping via Amazon.

With FBA you store your goods in Amazon's fulfilment centres. Amazon handles picking, shipping, customer service and returns processing – and your products become Prime-eligible.

Delivery routeACTIVE
🏭
Manufacturer
📦
Warehouse
🏠
Customer
Prime delivery · delivered tomorrow

From warehouse to customer

What this means for you

FBA in practice.

What FBA does not handle: your account, your listings, your advertising, your strategy. This is exactly where it differs fromFBO. You also need to keep an eye on storage fees, which quickly become expensive for slow-moving stock – regularRemissionen are a must.

Amer, founder of Onfidence
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Related: Fulfilment services → FBO explained →
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How FBA works in practice.

You register your goods in Seller Central, receive a shipping plan and deliver to the assigned fulfilment centre. From goods-in onwards, Amazon takes over: storage, picking, packing, shipping, customer communication and returns processing.

The key advantage is the Prime badge. Prime customers often filter by it, and Prime offers win the Buybox far more often. For most product categories, FBA is therefore effectively a prerequisite for serious sales.

The costs consist of two blocks: shipping fees per unit sold (by size and weight) and storage fees per cubic metre and month, which rise sharply beyond certain storage periods.

What to watch out for with FBA.

01
Packaging requirements

Follow labelling, barcode and carton requirements exactly – otherwise you risk reprocessing fees.

02
Inventory metric (IPI)

Amazon rates your inventory efficiency. A poor score can lead to storage restrictions.

03
Long-term storage fees

Goods that sit too long become expensive – check regularly and remove.

04
Inventory planning

Too little stock costs ranking, too much costs storage fees. Weeks of cover per SKU is the right metric to manage by.

05
Check returns

Returned goods often end up marked "unsellable" in the warehouse even though they're perfectly fine.

06
Dangerous goods & special cases

Some products need additional approvals or are excluded from FBA.

Common mistakes.

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Starting without a cost calculation. For low-priced or bulky products, FBA quickly eats the entire margin.

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Using the warehouse as permanent storage. Amazon isn't a cheap warehouse but an expensive turnover centre.

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Ignoring unsellable goods. They cost storage fees without ever generating revenue.

Frequently asked questions about FBA.

What does FBA cost?
The fees depend on size, weight and storage duration. Amazon provides a calculator for this – we're happy to work through it together in the first call.
Can I combine FBA and FBM?
Yes. Many sellers use FBA for fast-moving items and FBM for bulky or slow-moving products.
What happens to damaged goods?
For damage demonstrably caused by Amazon there are refunds – but you have to actively claim them.
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