Mastering Amazon IPI Score: Strategies to Keep Your FBA Inventory Healthy

June 24, 2026 · Seller AI

As an Amazon seller, your Inventory Performance Index (IPI) score can make or break your business. This crucial metric directly impacts your ability to sell products, and understanding how to manage it will keep your FBA inventory healthy and your sales soaring. Let's dive into the strategies to optimize your IPI score.

What is Amazon's IPI Score?

The Inventory Performance Index (IPI) is a score provided by Amazon to FBA sellers that measures their performance in managing inventory. It evaluates sellers based on excess inventory, inventory turnover, in-stock rate, and storage limitations. A higher score (ranging from 0-1000) indicates better inventory management, which can lead to increased storage capacity and improved sales.

How Does Amazon Calculate IPI Score?

Amazon calculates your IPI score based on the following four metrics:

• Excess Inventory: Amazon measures how long your slow-moving items have been in storage. Aim to keep this as low as possible.
• Inventory Turnover: This metric assesses how quickly your items sell through. Faster turnover is better for your score.
• In-Stock Rate: Amazon evaluates how often your items are available for customer purchase. A higher in-stock rate is preferable.
• Storage Limitations: Amazon sets inventory storage limits for FBA sellers. Staying within these limits is crucial for a good IPI score.

Strategies to Improve Your IPI Score

Here are some concrete steps you can take to improve your IPI score:

• Optimize Excess Inventory: Review your slow-moving items and consider reducing prices, offering promotions, or using sponsored ads to boost sales.
• Improve Inventory Turnover: Analyze your best-selling products and ensure they are well-stocked. For slow movers, consider re-evaluating your pricing or even discontinuing them.
• Maintain High In-Stock Rates: Monitor your inventory levels to avoid stockouts. Use Amazon's replenishment reports to forecast demand and plan restocking accordingly.
• Manage Storage Space: Regularly review your storage utilization to ensure you are not exceeding Amazon's limits. Consider liquidating old inventory or using alternative storage options if needed.

Impact of IPI Score on Restock Limits

Your IPI score directly affects your restock limits. If your score is below 400, Amazon imposes stricter limits on the inventory you can store. To avoid this, aim to maintain an IPI score of 400 or higher.

Monitoring and Adjusting

Regularly monitor your IPI score and take corrective actions as needed. Amazon updates the score monthly, so there's an opportunity to adjust your strategies based on the latest data.

How Seller AI's AI Agents Handle IPI Score for Amazon Sellers

At Seller AI, our AI agents are designed to help Amazon sellers manage their inventory effectively. By providing real-time insights into inventory levels, sales trends, and IPI score, our AI agents can help you optimize your FBA inventory, maintain healthy stock levels, and improve your IPI score. With Seller AI, you can focus on growing your business while our AI agents ensure your inventory remains in top shape.