This article applies to selling in: Australia

FBA Inventory Age

The FBA Inventory Age view gives you information regarding the age of your units in FBA. This page shows you the number of units in each age group, the number of units that will be subject to the long-term storage fee (LTSF) on the next charge date, and the estimated LTSF amount for those units (assuming no further sales). The view also shows your recent sales performance for each SKU and identifies opportunities for you to increase traffic or sales conversion to help sell through your aged inventory.

Important: Inventory Age is intended to provide you with information to help manage your inventory levels, but use of this tool should not be a substitute for your own judgment about demand for your products. Many factors may influence actual demand for your products, including price fluctuations, consumer demand shifts, and changes in competing offers for those products.

Frequently asked questions

How is inventory age determined?

Inventory age is based on the number of days a unit is in a fulfillment center. FBA accounts for inventory on a first-in-first-out basis across our entire fulfillment network. This means that each sale or removal will be applied to the inventory that has been in our fulfillment network the longest, regardless of which physical unit was actually shipped or removed.

Which products are shown in the Inventory Age view?

Any product that has at least 1 unit available for sale in FBA is shown in the Inventory Age view.

What is the long-term storage fee (LTSF)?

Inventory that has been in a fulfillment center for 365 days or more is subject to a long-term storage fee of $160 per cubic meter or a per-unit minimum charge $0.10, whichever is greater. The LTSF is assessed on the 15th of each month. The Inventory Age page shows your LTSF-eligible units and the estimated LTSF amount as of the next charge date, assuming no further sales. For more information about FBA long-term storage fees, see FBA Long-Term Storage.

How should I use this page to manage aged inventory?

Our goal is to help you easily identify aged inventory that may incur long-term storage fees and provide recommended actions aimed at helping you better manage the investment return on your inventory. In some cases, the recommendation may be to remove units from your inventory, in other instances, we may not recommend any action if your inventory levels are not in excess. Select Improve Recommendation in the drop-down menu to ensure we have accurate information for these SKUs. Several factors influence our recommendations:

SKU-level alerts

  • Quality alert – Indicates that the listing may be incomplete or incorrect. Customers search and browse the Amazon catalog using specific product details. If your listing information is incomplete or incorrect, it becomes more difficult for buyers to find, evaluate, and purchase your inventory. Clicking Edit Listing will allow you to edit the listing and fix quality issues.
  • Low traffic – Indicates that a low number of potential buyers have seen the listings. Use the Improve Keywords feature in the actions list to optimize how your listing appears in searches.
  • Low conversion – Indicates that potential buyers are viewing the listing but do not follow through and purchase the product. Ensuring a high quality detail page through the Edit Listing feature and pricing competitively through Lower Price helps improve conversion rates. In some cases, due to low demand, we may recommend removing some of the inventory if removal is more cost effective than incurring storage fees.


In addition to the alerts, you can also view how many units of a product have been sold over the last 7, 30, 60, and 90 days by hovering over a product’s Units Sold column. If you find that you have an item that you’d like to remove from your inventory, click Create removal order from the action menu.

What if I want to use different inputs to identify potentially excess inventory?

You can set your own unit cost and recovery rate per SKU by selecting Improve Recommendations in the drop-down menu. You can make changes to your default settings by clicking the Inventory Settings link. After making changes, please allow up to 24 hours for the changes to be reflected in your recommendations.

How can I provide feedback about the Inventory Age view?

Your feedback is important for helping us improve our inventory management tools. If you think there may be an opportunity for improvement, please provide us feedback in one of the following ways:

  • Rate the page using the Tell us how we're doing link on the Inventory Age view

Glossary of Terms

Cubic metre

The volume in cubic metres that the ASIN is taking up in Amazon fulfillment centers. Available units x volume per unit = cubic metres.

Inventory age (days)

Shows a breakdown of your FBA units by age group. We separate your units into the following age groups: 0 – 90 days, 91 – 180 days, 181 – 270 days, 271 – 365 days, and 365+ days


Shows the estimated long-term storage fee amount that will be incurred on the next charge date (the 15th of each month) and the number of units subject to the fee, assuming no further sales or removals of the item.

Low conversion (yellow alert icon)

An alert that indicates that fewer buyers are purchasing the product after viewing the listing relative to other listings in the same category.

Low traffic (yellow alert icon)

An alert that indicates that the ASIN listing has a low number of viewers compared to other ASINs in the same category.

Recommended sale duration (Create sale)

If a sale is recommended, this is the estimated sale duration in days that would likely help you sell through your excess inventory.

Recommended removal quantity (Create removal order)

Estimated quantity of inventory that would likely benefit from removal instead of being charged storage fees.

For a more detailed analysis of your FBA inventory age, you can download the full report as a .txt file by selecting the Download Report button in the upper left of the page.

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