Amazon FBA Inventory Management Services for Sellers

Our comprehensive Amazon FBA Inventory Management Services include everything from predictive demand forecasting to inventory drip-feeding and IPI score optimization. Our human-led agency approach is designed to protect your BSR and profit margins. We make sure your top ASINs remain in stock and avoid Amazon's penalty zones, allowing you to focus on growing your brand.


Suffering from stock outages? We help you keep your best-selling ASINs fully stocked at all times.

Struggling to find and work with Chinese suppliers? We work with native Mandarin speakers who are also Amazon experts.

Bleeding profit due to Amazon storage fees? We help you navigate the Amazon storage fee jungle.


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Amazon FBA inventory management services

Common Amazon Seller Fulfillment and Logistics Challenges

Managing an Amazon supply chain is a tricky business. While being out of stock is a situation that any seller wants to avoid, hefty Amazon FBA storage fees and complex rules around managing inventory are difficult to navigate even for experienced Amazon operators. The three most common issues we help our clients solve include:


Mitigating Amazon Long-Term Storage Fees

Accurate demand forecasting is crucial to managing your Amazon inventory and avoiding hefty Amazon long-term storage fees.

Replacing Generic Software

Many sellers use software solutions to optimize their Amazon fulfillment and logistics. These off-the-shelf applications may not be a good fit for your products. Also, it’s easy to get overwhelmed by generic dashboards that don’t solve real supply chain issues.

Untangling FBA Restock Limits

Especially during Q4, many sellers encounter issues with FBA restock limits. Our supply chain experts work through Amazon’s capacity limits so your best-selling ASINs never miss a sale.



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How We Help you Optimize Your Amazon Supply Chain

Our human-led and AI-assisted approach supports your Amazon supply end-to-end. We can help you optimize your manufacturing timelines, work with US-based 3PLs and Amazon's FBA network to ensure sufficient Amazon stock levels, minimize the amount of capital tied up in inventory, and keep your IPI score out of the red. Our dedicated Amazon Inventory Management experts can support you with:

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Predictive Demand Forecasting

We build custom forecasting models based on your product lifecycle, seasonality, and buying trends. By considering lead times, we let you know exactly how many units to order (and when).

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3PL Staging & FBA Drip-Feeding

To navigate Amazon’s strict capacity limits, we direct your bulk shipments to an affordable US 3PL. From there, we carefully "drip-feed" inventory into FBA to keep you in stock without incurring large coverage fees.

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IPI Score Optimization

We constantly monitor your sell-through rate, excess stock, and stranded units. By maintaining a high Inventory Performance Index, we maintain ample FBA storage for your top-performing ASINs.

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PPC & Inventory Synchronization

As a fully integrated Amazon seller agency our supply chain & advertising teams work hand in hand. We automatically reduce ad spending when stock gets low to protect your organic rank, and we launch targeted promotions to clear overstock items before extra storage fees apply.

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Grow Your Business with Expert Fulfillment Services

$600M+

Sales since 2021

+30%

Average Market Share Increase

45+

Total Team Years of Amazon Experience

Why Amazon Brands Choose SellerMetrics for Amazon Inventory Management Services


While other Amazon agencies focus solely on top-line revenue, we focus on the bottom line. Inventory management is the ultimate lever for profitability.


Dedicated Amazon Supply Chain Experts

You aren't handed off to a junior account manager. You work with seasoned logistics professionals who understand the complexities of Amazon's ecosystem.

Proactive, Not Reactive

We don't wait for a stockout warning on Seller Central. We work in a forward-looking manner to anticipate seasonal fluctuations, factory delays due to Chinese national holidays, and the impact of Amazon sales events like Prime Day.

Holistic Strategy

We view your inventory through the lens of an operator and also consider the mid-term impact of Amazon SEO and Amazon Advertising, to ensure seamless operations that support your growth on the Amazon marketplace.

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Testimonials from our clients


We switched to SellerMetrics for Amazon PPC management after 6 months of flat sales. With their help, we are back to growing 5–10% each month while keeping our TACOS below 15%. We have a dedicated account manager, and if we need more help, Rick is always available

I've been enjoying working with SellerMetrics for almost a year now. The SellerMetrics team goes above and beyond. They make it easy and stress-free, which is exactly what you want from an agency. It's nice to have someone on your side who knows everything there is to know about advertising on Amazon. If you're looking for a great Amazon PPC company, I really like SellerMetrics.

Using SellerMetrics Amazon PPC managed service allows me to free up my time for the other things that matter. I have been impressed with the team’s data-driven approach. Unlike other Amazon PPC agencies, their methods are cutting edge, transparent and it works!

SellerMetrics is the one-stop shop for all your Amazon Advertising needs. Whether you’re a first-time user, who simply wants to press a single button to create a high performance fully automated campaign structure or a veteran of PPC who wants to manage their campaigns directly but save time using SellerMetrics’ intelligent bulk and filtered changes, this is the platform for you.

Case Studies


Improving Keyword Rankings to Grow Sales by 60%
($2.6M to $4.2M ARR)

Growing an F&B Brand's Amazon Sales by 80% YoY

Applying the 80/20 rules to Amazon PPC optimization

Dayparting strategy to increase ROI by 40%

KDP Author increases his KENP Reads increase 200% for Sci Fri fiction series

Advance low bid strategy to help a Yoga brand launch in Amazon Canada and UK

Level up your Amazon skills
with our resources


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FAQ: Amazon Inventory Management Experts


I already paid for FBA inventory software. Why do I need a human-led agency?

Generic software dashboards are purely reactive. Software cannot negotiate with freight forwarders, set up emergency FBM backup networks, or intuitively understand the seasonal sales spikes of US consumer goods. SellerMetrics provides a dedicated human team that actually executes the supply chain strategy for you.

Why is my Inventory Performance Index (IPI) score dropping, and how do I fix it?

A dropping IPI score is usually caused by holding too much excess inventory, having a low sell-through rate, or ignoring stranded inventory. If it falls below Amazon's threshold, you will get severe storage penalties. We actively manage the four pillars of your IPI score by liquidating slow-moving units, optimizing your active restocks, and fixing stranded ASINs so you maintain unlimited storage capacity.

How does inventory management affect my Amazon PPC campaigns?

Inventory and PPC are deeply connected. If you run aggressive PPC campaigns while low on stock, you will sell out faster, resulting in a loss of organic ranking. Our team synchronizes your supply chain data with your advertising strategy, throttling ad spend down when stock is low, and pushing promotions when you need to liquidate excess inventory.

How can I stop paying massive Amazon long-term storage fees?

Amazon is a fulfillment center, not a storage unit. If your products sit for over 180 days, you get hit with aged inventory surcharges. We prevent this by moving away from the "send it all at once" model. By accurately forecasting your demand and utilizing 3PL buffering, we ensure you only keep 30 to 60 days of stock at FBA at any given time.

What is the difference between Pan-EU and EFN in Europe?

The European Fulfillment Network (EFN) allows you to hold inventory in one country (e.g., Germany) and ship across the EU. It requires only one VAT registration but carries higher shipping fees. Pan-European FBA allows Amazon to distribute your inventory across multiple countries for faster, cheaper local delivery, but it requires you to be VAT registered in every country where stock is held.

How do I get product reviews in a new country?

Amazon’s global review syndication will often display your US reviews on your international listings, which provides immediate social proof. However, we also strongly recommend utilizing localized Amazon Vine programs to generate native-language reviews, as these convert local shoppers much more effectively.

Is hiring an inventory management agency worth the monthly cost?

Calculate the exact dollar amount of revenue you lost during your last stockout. The funds you spent on PPC trying to regain your organic keyword ranking, plus the aged inventory fees you paid last quarter. Our flat monthly retainer is a fraction of those losses, making our service an immediate, revenue-protecting ROI for your business.

Do you use software to manage FBA inventory?

Yes, we utilize inventory forecasting software and also AI, but software is only part of the equation. Our supply chain experts analyze the data to account for variables that software can't predict, such as upcoming marketing pushes, influencer campaigns, port delays, and manufacturer lead time variations.

Amazon slashed my FBA restock limits. How can I stay in stock during Q4?

Strict capacity limits are one of the biggest bottlenecks for US sellers during peak seasons. You cannot rely on sending bulk shipments directly from your manufacturer to FBA anymore. We solve this by staging your bulk inventory at a cost-effective US-based 3PL warehouse. From there, our team strategically drip-feeds smaller, frequent shipments into the Amazon network. You stay perfectly in stock without ever violating Amazon’s capacity restrictions.

Can you help me set up a US-based 3PL if I don't already have one?

Yes. Navigating Amazon's strict restock capacity limits requires a reliable 3PL buffer. If you do not currently have a warehouse partner in the United States, we can introduce you to trusted, vetted 3PL facilities within our network that specialize in Amazon FBA prep, labeling, and drip-feed forwarding.