Your Inventory Performance Index (IPI) score determines how much storage you get at Amazon’s warehouses — and whether Amazon limits, penalizes, or rewards you.

A higher IPI score means:
✔️ More storage space
✔️ Lower fees
✔️ Better inventory flow
✔️ Faster product restocking
✔️ Higher long-term profitability

A low IPI score, on the other hand, can freeze your growth and cost you money.

Here are the 6 most effective ways to boost your IPI score.

1️⃣ Increase Your Sell-Through Rate

The biggest driver of your IPI score is how quickly your inventory sells.

To improve sell-through:
✔️ Buy quantities based on SpyRivals Data
✔️ Avoid overstocking slow movers
✔️ Replenish only what sells
✔️ Use the Internet Mastery AI Repricer to increase Buy Box rotation
✔️ Prioritize fast-moving, proven products

If your inventory moves quickly, your IPI score rises automatically.

2️⃣ Restock Your Fast Sellers Consistently

Amazon rewards sellers who stay in stock on winning products.

To improve this metric:
✔️ Keep an eye on your replenishable ASINs
✔️ Restock before you run out
✔️ Track volume weekly
✔️ Use Amazon’s “Restock Inventory” tool as a guide

Running out of inventory hurts your score — staying stocked boosts it.

3️⃣ Reduce Excess Inventory (Big IPI Booster)

Excess inventory drags your IPI score down every single day.

To fix it:
✔️ Identify products with 90+ days of supply
✔️ Create a sale discount or coupon
✔️ Lower price temporarily
✔️ Liquidate if needed
✔️ Avoid buying large quantities before testing

Clearing out dead inventory is one of the fastest ways to bump your IPI score.

4️⃣ Improve Your Buy Box Percentage With Smart Pricing

More Buy Box time = more sales = higher IPI.

Manually adjusting prices is too slow.
The Internet Mastery AI Repricer improves this metric by:
🔥 Updating prices instantly
🔥 Winning more Buy Box rotation
🔥 Preventing price tanking
🔥 Moving slow inventory faster
🔥 Increasing overall sell-through

Better pricing = faster inventory turnover = stronger IPI.

5️⃣ Manage Your Stranded Inventory Quickly

Stranded inventory = items sitting in a warehouse that cannot sell.

This kills your IPI score.

Fix stranded inventory by:
✔️ Updating listing errors
✔️ Fixing pricing alerts
✔️ Editing variations or attributes
✔️ Removing restricted ASINs
✔️ Recreating missing listings

Once your stranded units are fixed or removed, your IPI score improves.

6️⃣ Remove Dead Inventory When Necessary

Items that haven’t sold in months hurt your score.
Sometimes the best move is to remove or dispose.

Remove inventory if:
✔️ It consistently doesn’t sell
✔️ Competition increased too heavily
✔️ The Buy Box dropped permanently
✔️ You bought too much too early

Removing unsellable inventory instantly boosts your metrics and frees storage for products that actually sell.

🎯 Final Takeaway

Improving your IPI score is all about moving inventory and managing it intelligently.

Focus on:
✔️ Fast sell-through
✔️ Continuous restocking
✔️ Eliminating dead inventory
✔️ Better pricing and Buy Box wins
✔️ Fixing stranded ASINs quickly

Keep improving these areas and your IPI score — and overall Amazon performance — will climb fast.