AMAZON / OPERATIONS & INVENTORY

Amazon inventory: staying in stock without paying to store what does not sell.

Amazon inventory management means deciding how much stock to send, when and through which fulfilment option, within the limits Amazon sets for each account. Running out stops sales; sending too much adds storage fees.

WHAT THIS TOPIC COVERS

Stock problems show up in sales, fees and account health.

After a stockout, a listing can take time to regain its position. Excess stock raises storage costs and, over time, aged-inventory surcharges, so every shipment weighs one risk against the other.

  • FBA capacity limits and how Amazon sets them
  • Replenishment from sales rate, lead time and safety stock
  • Stranded and unfulfillable inventory
  • FBA, seller-fulfilled orders and third-party warehouses

FREQUENTLY ASKED

Amazon inventory questions.

What are FBA capacity limits?

FBA capacity limits cap how much stock a seller can send to and keep in Amazon's fulfilment centres over a period. Amazon sets them per account, using factors such as expected sales and, in the marketplaces that use it, the Inventory Performance Index. Shipments planned around them avoid stock waiting outside Amazon.

What is stranded inventory on Amazon?

Stranded inventory is stock held in an Amazon fulfilment centre with no active offer to sell it, usually because the listing was closed, suppressed or has an error. Buyers cannot purchase it, and it still takes up storage. Seller Central lists it with the reason, and the fix is either restoring the offer or removing the stock.

How much stock should be sent to FBA?

Enough to cover sales for the time it takes to produce, ship and receive the next batch, plus a safety margin for demand swings and delays. Sending far more raises storage fees and can hit capacity limits. The calculation uses each product's sales rate and real lead times.

Is FBA always the right choice?

No. FBA suits products that sell steadily and fit Amazon's size tiers well. Bulky, slow-moving or seasonal products can cost less when the seller ships them or uses a third-party warehouse, so the comparison is made product by product, with fees, storage and delivery promise side by side.

GUIDES

Guides on Amazon inventory.

Stock decisions on Amazon

Capacity limits, stranded units, shipment size and the FBA choice are explained above; see Amazon operations for stock work in your account.

RELATED TOPICS

Topics that depend on stock.

Fees & profitability

Storage, removal and fulfilment fees, the cost side of every stock decision.

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Account health & compliance

Shipping performance metrics and the listing errors that strand stock.

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Europe expansion

Stock for several European stores: Pan-European FBA or one warehouse with EFN.

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NEXT STEP

Stock stuck, stranded or about to run out?

FBA shipments, stranded units, replenishment plans and removals are charged to a prepaid bag of hours, each task by its complexity. Goods arriving in Spain by container or pallet can be received and prepared first by our logistics partner, 3PL Spain.

Tell us about the stock