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Stockouts

Inventory Hero articles on stockouts — practical guidance for Amazon FBA sellers.

  • February 28, 2026·5 min read

    Overstocking Inventory: The Cost and How to Fix It

    Overstocking ties up cash, racks up storage fees, and drags your IPI. How to spot overstock, what it really costs, and how to clear it, for Amazon FBA.

  • February 27, 2026·5 min read

    Stockout Days: What They Are and Why They Matter on FBA

    Stockout days are the days a SKU was unavailable. Why they quietly distort your velocity and IPI, how to find them, and how to exclude them from your math.

  • February 26, 2026·5 min read

    Out of Stock and Amazon Ranking: What Really Happens

    Running out of stock hurts your Amazon ranking because velocity drives rank. What happens while you are out, how much you lose, and how to recover.

  • February 23, 2026·5 min read

    How to Calculate Lost Sales from an Amazon Stockout

    Lost sales equal your stockout days times the velocity you would have had. The formula, a worked example, and how to adjust for trend and season.

  • February 22, 2026·5 min read
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The Real Cost of a Stockout on Amazon FBA, Fully Priced

A stockout costs far more than the missed sales: lost rank, a lower IPI, wasted ad spend, and a slow recovery. How to add up the true cost for FBA.

  • December 5, 2025·5 min read

    What Is a Backorder? What It Means for Amazon Sellers

    A backorder is an order for an out-of-stock item, filled when you restock. What it means on Amazon, and why FBA cannot do it while FBM can.