How to Restore Your Amazon Quantity Limits Quickly in 2026

Amazon’s new 2026 Inventory Performance Index (IPI) threshold blindsided thousands of sellers with sudden storage cuts.

The drop from 400 to 350 means sellers who were safe last year, now face immediate Amazon quantity limits, blocking restocks of bestsellers and risking lost sales.

As capacity shrinks, sell-through rates fall, triggering a cycle that can erode margins and push customers to competitors.

This guide shows you how to restore and sustain your Amazon quantity limits, fast.

Why Amazon quantity limits are tighter in 2026

Amazon’s 2026 IPI threshold dropped from 400 to 350, cutting storage for thousands of sellers. The IPI score measures how efficiently you manage inventory in Amazon’s fulfillment network. A score below 350 now triggers immediate storage restrictions, compressing your window to act from months to weeks.

This change impacts your business in three critical ways:

• Lost sales velocity as you cannot restock bestsellers, pushing customers to competitors
• Margin erosion from rising storage fees on idle inventory
• Increased risk of stockouts, leading to gaps in availability for top products

Sellers who identify their IPI constraint and act within 30 days often recover lost capacity in 4 to 6 weeks.

Suggested read: Inventory Management Statistics and Trends

The mechanics behind Amazon quantity limits: IPI, account, and ASIN caps

Amazon uses a combination of IPI score, account-level storage caps, and ASIN-level restock limits to set your Amazon quantity limits. Understanding which constraint applies is key to targeted recovery.

• IPI score: Your core driver, measured from 0 to 1,000. Scores above 500 indicate strong health, 400-450 is a vulnerable zone, and below 350 triggers restrictions
• Account-level storage caps: Amazon allocates a total cubic feet allowance per seller based on IPI, sales velocity, and historical performance. For example, if your IPI drops from 380 to 340, your storage could shrink from 5,000 to 2,500 cubic feet
• ASIN-level restock limits: Reintroduced in 2025, these caps restrict how many units you can send for each SKU, even for bestsellers, if your overall inventory efficiency is low

How they interact: Your usable storage is the lowest of these three caps. If your account limit is 3,000 cubic feet but your top ASIN is capped at 100 units, the ASIN cap is binding.

Once you know your cap, the next step is to diagnose what is dragging your score down.

Suggested read: Inventory Management in Ecommerce: How It Saves Money

The four IPI drivers: What really drags your score down

Four metrics determine your IPI score. Real-time visibility into each is essential for fast recovery:

• Excess inventory percentage: Products with more than 90 days of supply are flagged as excess. If over 15% of your catalog is excess, your IPI drops. Fix by discounting, running promotions, or removing aged inventory
• Sell-through rate: Measures units sold in the last 90 days divided by average inventory. Amazon targets a rate of 3.0 or higher. Improve by optimizing listings, adjusting pricing, or promoting slow-movers
• Stranded inventory percentage: Inventory at Amazon without an active listing cannot be sold, but still incurs fees. Fix by resolving listing errors or compliance issues immediately
• FBA in-stock rate: Tracks how often your replenishable products are in stock, weighted by sales volume. Low in-stock rates on bestsellers hurt your IPI. Maintain 45-60 days of supply for top SKUs and restock weekly

Once you know your weak spot, here is how to recover fast.

Suggested read: An Ecommerce Business Owner's Guide to FBA Spending

Quick wins: Fastest ways to restore your Amazon quantity limits

You can raise your IPI and restore Amazon quantity limits within weeks by targeting stranded inventory, excess stock, and listing errors first.

Step-by-step quick wins:

• Clear stranded inventory immediately using Seller Central’s Stranded Inventory report and fix root causes within 24-48 hours
• Discount or remove excess inventory over 90 days of supply using targeted promotions or removal orders
• Fix listing errors and missing product information to improve search visibility and buy box eligibility
• Set up Seller Central alerts to monitor IPI score and flag downward trends weekly

Suggested read: A Complete Guide to Multi-Channel Inventory Management

Long-term IPI recovery: Building sustainable inventory health

A strong IPI score over time depends on disciplined inventory planning, not short-term fixes. The goal is to keep Amazon’s fulfillment centers stocked with inventory that sells consistently and predictably, reducing the risk of Amazon quantity limits.

Here are some quick tips:

• Replenish based on sales velocity, not forecasts alone
• Reduce slow-moving, excess, and stranded inventory regularly
• Remove or liquidate aging FBA stock before it hurts sell-through
• Avoid overstocking during peak seasons without proven demand
• Keep listings accurate to prevent suppressed or stranded units
• Review inventory performance metrics weekly, not just monthly

The key to making these habits stick is a repeatable weekly review.

Monitor your IPI progress weekly: Spot trends before they become problems

Weekly IPI reviews surface improvement trends and flag new risks before they trigger further limits. Ecommerce automation makes this sustainable.

15-minute weekly audit checklist:

• Review Seller Central dashboard for IPI score and trends
• Pull stranded inventory report and resolve issues
• Analyze sell-through rates by ASIN
• Forecast next four weeks of demand and adjust restocks
• Document findings in a tracker or dashboard

Webgility’s dashboard automates weekly IPI tracking, trend analysis, and real-time alerts, freeing you from manual spreadsheets.

Suggested read: Amazon Inventory Forecasting: When to Upgrade for Scale

Common mistakes that stall Amazon quantity limit recovery

Avoiding common IPI mistakes can accelerate your recovery and protect sales.

Top five mistakes and corrective actions:

• Over-ordering inventory; order based on 30-60 days of supply, not guesswork
• Ignoring stranded SKUs; resolve within 48 hours to avoid pure cost
• Neglecting in-stock rates; prioritize restocking bestsellers weekly
• Skipping weekly reviews; set a recurring calendar reminder
• Relying on manual data; use automated tools for real-time visibility

Suggested read: How to Manage Amazon Inventory for Better Profits

How Webgility supports automated inventory management

Sellers using automated inventory management recover capacity faster, save time, and sustain growth.

Webgility delivers real-time inventory sync, SKU-level analytics, automated alerts, and multi-channel integration. Key benefits include:

• SKU-level insights and alerts improve reordering accuracy
• Multi-channel integration prevents overselling across shops and marketplaces
• Syncing with accounting systems ensures inventory data drives financial forecasting
• Centralized dashboard lets you spot stock issues before they impact fulfillment

Bases Loaded, a long-established sporting goods retailer, used Webgility to automate inventory and order workflows. They cut manual order posting from minutes per order to fully automated processing for thousands of orders daily.

This automation boosted operational capacity and supported the company’s growth from about $1.9 M to over $5.5 M in online revenue while keeping inventory accurate across channels without extra staffing.

Schedule a demo with Webgility today.

Frequently asked questions (FAQs)

How to bypass quantity limit on Amazon?

You generally cannot bypass quantity limits on Amazon. These limits are set by Amazon or the seller to manage inventory and prevent bulk buying. The only valid options are placing multiple orders if allowed, contacting the seller for a bulk request, or purchasing from another seller.

How to set maximum order quantity in Amazon?

Maximum order quantity can only be set by sellers. Sellers can do this through Seller Central by editing the product listing and specifying the maximum order quantity.

What is the maximum order quantity?

There is no fixed maximum order quantity on Amazon. It varies based on the product, seller policies, and Amazon’s restrictions.

What is the minimum quantity on Amazon?

The minimum quantity on Amazon is usually one unit. Some wholesale or business listings may have a higher minimum quantity, which is shown on the product page.