How to Use Amazon's FBA Inventory Report to Manage Stock and Avoid Costly Fees
Amazon's FBA Inventory report provides a centralized view of stock levels, aging inventory surcharges, sales velocity, and restock recommendations. Sellers can use it to avoid escalating storage fees and maintain a healthy IPI score.
Overview
Amazon's FBA Inventory report is a centralized tool that gives sellers a comprehensive view of their fulfillment center stock levels, aging inventory, sales velocity, and estimated storage fees. Understanding this report is essential for maintaining a healthy Inventory Performance Index (IPI) score and avoiding unnecessary surcharges that can eat into your margins.
Key Points / What Sellers Need to Know
- Single dashboard for inventory health — The FBA Inventory report consolidates restock recommendations, excess inventory alerts, aged inventory data, and unfulfillable units into one location, making it easier to take action without jumping between multiple tools.
- Aged inventory surcharges escalate quickly — Amazon charges increasing surcharges based on how long units sit in fulfillment centers, starting at $0.15 for units stored 181–210 days and climbing to over $2.00 per unit beyond 365 days.
- Low-traffic and low-conversion alerts flag problem listings — The report highlights ASINs that either aren't being seen by shoppers or aren't converting views into purchases, helping you identify listings that need optimization.
- Minimum inventory level recommendations — Amazon now provides a recommended minimum stock level for each ASIN, along with estimated days of supply based on demand forecasts, so you can plan replenishment more precisely.
- Estimated cost savings guide your next move — The report calculates how much you could save by following Amazon's recommended actions (such as price reductions or removals) compared to simply continuing to pay storage fees on slow-moving stock.
What the Report Includes
The FBA Inventory report contains a detailed breakdown of metrics for every ASIN stored in Amazon's fulfillment network. You'll find sales data across multiple time windows (7-day, 30-day, 60-day, and 90-day periods), current list prices, and Featured Offer pricing. Inventory quantities are broken into sellable, inbound-working, inbound-shipped, and inbound-receiving categories so you can see exactly where your stock stands in the pipeline. Each product is identified by its ASIN and FNSKU, and the report includes the item's condition (new, used, etc.) alongside its current fulfillment status.
Analysis & Recommendations
Why This Matters
This report is a primary tool for controlling FBA storage costs, which can silently erode margins. Sellers who regularly monitor aging inventory and act on restock recommendations avoid unnecessary surcharges and maintain the IPI scores needed for full storage access.
Key Takeaways
- Aged inventory surcharges escalate from $0.15 per unit at 181 days to over $2.00 per unit past 365 days
- Amazon provides minimum inventory level recommendations with demand-based days-of-supply estimates
- Low-traffic and low-conversion alerts help identify listings that need optimization before stock becomes stale
- The estimated cost savings metric shows the financial benefit of acting on Amazon's removal or pricing recommendations
Recommended Actions
- →Review the aged inventory breakdown weekly and create removal orders for any units approaching the 181-day surcharge threshold
- →Use the minimum inventory level and days-of-supply estimates to set restock alerts and avoid both stockouts and overstocking
- →Investigate any ASINs flagged with low-traffic or low-conversion alerts and update listings, adjust pricing, or launch PPC campaigns accordingly
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