Mastering Amazon IPI Score and Restock Limits: Strategies for FBA Inventory Health

August 04, 2026 · Seller AI

As an Amazon seller, your Inventory Performance Index (IPI) score and restock limits can significantly impact your business. Learn how to manage and optimize these metrics for a thriving FBA inventory.

Being an Amazon seller means you're always looking for ways to optimize your operations, and a critical aspect of this is maintaining a healthy Inventory Performance Index (IPI) score. Your IPI score is a metric that Amazon uses to assess your inventory management efficiency. A high score can lead to better access to storage space and lower fees, while a low score can trigger stricter restock limits and higher fees.

What is Amazon's Inventory Performance Index (IPI)?

The IPI score, which ranges from 0 to 1000, is calculated based on your performance in excess inventory, in-stock rate, slow-moving inventory, and滞留 (stuck) inventory. An IPI score of 400 or above is considered 'good' and will give you access to standard storage capacity. Below this threshold and your storage capacity will be limited, which could affect your sales.

How Do I Improve My IPI Score?

• Excess Inventory: Keep your inventory lean by analyzing sales velocity and reducing excess stock that doesn't sell. Aim for a 26 weeks or less of inventory target.
• In-Stock Rate: Ensure you maintain a high in-stock rate by accurately forecasting demand and restocking your items promptly.
• Slow-Moving Inventory: Identify and reduce slow-moving items. Consider offers, discounts, or removals to free up space for more profitable products.
• Stuck Inventory: Keep track of items that are not sellable and work on resolving issues to get them back in a sellable condition.

Navigating Restock Limits

With the introduction of restock limits on Amazon, sellers with an IPI score below 400 face challenges in managing their inventory. Here’s how to navigate these limits:

• Understand Your Limit: Amazon will provide your maximum storage limits. Know what these are and plan your inventory accordingly.
• Optimize Inventory: Use the Amazon warehouse app to optimize your inventory and maximize your storage capacity.
• Inventory Planning: Plan your inventory around the demand of your products. Consider seasonal fluctuations and upcoming sales events.

Forecasting and Restocking

Effective forecasting and timely restocking are key to maintaining a healthy IPI score. Keep a close eye on your sales velocity and lead times to avoid stockouts. Utilize Amazon’s predictive analytics to help forecast demand accurately.

Remember, the goal is not just to meet the minimum IPI score but to exceed it consistently. This will position you as a preferred seller on Amazon and give you a competitive edge.

How Seller AI Helps

At Seller AI, our AI agents are designed to assist Amazon sellers in managing their inventory health. By using advanced algorithms, our system can predict sales trends, suggest optimal stock levels, and automate restock actions, ensuring your IPI score remains high and your inventory is always in check. With Seller AI, you can focus on growing your business while our AI agents handle the intricacies of inventory management.