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This article applies to selling in: Japan

FBA inventory storage limits

Note: Effective October 1, 2021, the IPI threshold for storage limits is 400 (previously 450).

To better manage fulfillment center storage space, so that products are received and shipped to buyers more quickly, inventory storage limits can be applied. Storage limits are based on volume, which is measured in cubic meters, and are set for each storage type. Your current limits, potential storage limits, and usage are shown when you expand Storage Volume, which you can view in your Inventory performance dashboard and Shipping Queue.

Storage limits criteria

Individual selling accounts have a set storage limit of 0.28 cubic meters. These accounts are not subject to increases in storage limits.

Professional selling accounts may or may not have storage limits, depending on the following criteria:

  • Sellers who maintain an Inventory Performance Index (IPI) score of the required threshold or above on either of two score checkpoints will not be subject to storage volume limits for small/standard-size, oversize/supersize, apparel, and footwear items.
  • Sellers with an IPI score less than the required threshold on both score checkpoints will be subject to storage volume limits for small/standard-size, oversize/supersize, apparel, and footwear items.
  • New sellers who have been active for less than 26 weeks, or sellers without enough sales data to generate an IPI score during both of the two score check weeks will not receive storage limits.

Professional accounts that have storage limits will receive a minimum of 0.71 cubic meters per storage type.

You can track your IPI score on the Inventory performance dashboard and learn more details on IPI on the IPI Help page. This free tool provides a hub for optimizing your FBA business, including customized recommendations to grow your sales and reduce costs. Your score is updated weekly based on your ongoing inventory management. This change only applies to sellers with professional selling plans.

Storage types

Storage limits are applicable for four storage types: small/standard-size, oversize/supersize, apparel and footwear. To see which storage types your products are categorized as and how much cubic meters they occupy, go to Manage Inventory Health page.

Dangerous goods storage limit adjustments (flammable and aerosol) are handled separately from other storage types. For more information, search for "dangerous goods" in Seller Central and select Dangerous goods FAQ at the top of the search panel.

Note: Amazon determines the storage type of your inventory based on the characteristics of the product. Storage type is not a category that sellers can adjust. Products are not classified by more than one storage type.

Calculating cubic meters from centimeters

  1. Multiply length x width x height in cm to get the volume.
  2. Divide the volume by 1,000,000, which is one cubic meter in cm.

Example: A unit measuring 100 x 60 x 25 cm divided by 1,000,000 = 0.15 cubic meters.

Note: Amazon may verify the weight and dimensions of a product using representative samples. Amazon’s information about a product’s weight and dimensions will be used to calculate fees if there is a difference between Amazon’s information and a seller’s information. Amazon may change its information about a product’s weight and dimensions from time to time to reflect updated measurements. Fees based on the weight and dimensions of a product are calculated using Amazon’s information about the weight and dimensions of that product at the time the fee is calculated.

Exceeding your FBA storage limit

Under the FBA inventory storage limits policy, you will not be able to create a new shipment to Amazon for a storage type until your inventory level drops below your limit for that storage type.

For example, if your current limit for standard-size inventory is 3 cubic meters and you have 5 cubic meters of standard-size inventory at an Amazon fulfilment center, you will not be able to create a new standard-size inventory shipment. However, if you are below your storage limit for oversize inventory, you can create shipments of oversize inventory.

If you send more inventory than what your storage limit allows, the extra inventory may be refused at the fulfillment center. For more information, see Shipping and routing requirements.

Storage overage fees will be charged if your existing inventory exceeds your storage limit for any storage type on any day within a given month. To learn more, visit Overage fee.

Reducing inventory

There are three ways to decrease the amount of inventory you have in an Amazon fulfillment center:

  • Sell more inventory. Manage Inventory Health provides recommendations to increase sales.
  • Request to have inventory returned to you by creating a removal order.
  • Request to have inventory disposed of by creating a removal order.
Important: When you submit a removal order or make similar changes, the won't reflect the changes until your request is moved to Pending. Typically, this happens on the following day. Customer returns contribute to your overall inventory count.

Frequently asked questions

Can I purchase storage space?

No, storage space cannot be purchased.

Can I change the storage type of a product?

No. Storage types are determined by Amazon based on the characteristics of a product.

You can check which storage type your products are categorized as and how much cubic meters they occupy on the Manage Inventory Health page.

Can I trade space for one storage type with space in another storage type?

No. Inventory cannot be traded between storage types.

What if I do not have an IPI score or am a new FBA seller?

Most sellers with Professional selling accounts have an IPI score but some do not, because we do not have enough data to generate a score for the account. This is usually the case for sellers who are new to FBA or have small quantities of FBA inventory.

You can view the date you received your first IPI score by clicking the Show details link under the IPI score color bar. This will reveal your Historical performance index and your First IPI score date will be visible above the graph.

Most sellers will receive their first IPI score approximately 15 weeks after their first product is received by FBA.

Visit the Inventory performance dashboard for recommendations on managing your inventory.

What happened to the hazmat storage type?

Dangerous goods (aka hazmat) storage limit adjustments will be handled separately from this new policy. Refer to Dangerous goods identification guide for more details.

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