Amazon's Commingled Inventory Policy Deprecated

Amazon Ends Commingled Inventory March 31, 2026: What FBA Sellers Must Do Now

By AMZ Sellers Attorney® | Updated: May 23, 2026

For more than a decade, Amazon's commingled inventory program was one of the most contentious features of Fulfillment by Amazon. It promised faster delivery and lower prep costs, but exposed sellers to counterfeit risk, quality-control failures, and account suspensions tied to inventory they never touched. As of March 31, 2026, that era is over. Amazon has officially ended commingling, and the question for FBA sellers is no longer "should I opt out?" — it's "am I prepared for the new rules?"

Key date: Commingling practices ended on March 31, 2026, for all inventory shipped on or after that date. The change was announced at Amazon's Accelerate 2025 conference and confirmed in Seller Central. New FBA barcode rules now apply to every shipment heading into Amazon fulfillment centers.

What Changed on March 31, 2026

Amazon has retired stickerless, commingled inventory across its U.S. fulfillment network. Previously, identical products from multiple sellers were pooled under a single manufacturer barcode and shipped from the closest available unit — regardless of which seller originally supplied it. That practice is gone.

Every unit entering FBA is now tracked back to a specific seller. The barcode rules, however, differ depending on your seller type, and that distinction is the single most important thing FBA sellers need to understand in 2026.

The new barcode rules at a glance

Brand owner enrolled in Brand Registry (Brand Representative role)

Product with manufacturer barcode (UPC, EAN, ISBN): No FNSKU sticker required. Amazon tracks units virtually via the manufacturer barcode.

Product without a manufacturer barcode: FNSKU sticker required.

Reseller (including authorized resellers without Brand Representative status)

Product with manufacturer barcode (UPC, EAN, ISBN): FNSKU sticker required on every unit, even when a manufacturer barcode is already present.

Product without a manufacturer barcode: FNSKU sticker required.

The practical impact is sharply split. For Brand Registry brand owners, the change is a win — it eliminates the labor and cost of re-stickering inventory purely to defend against commingling. Amazon estimated that brand owners collectively spent roughly $600 million in the year leading up to the announcement on re-stickering. For resellers, it's the opposite: FNSKU labeling is now mandatory on every unit, even items that had previously been eligible for stickerless inbound shipments.

Post-commingling, every unit in FBA is tied to a single seller — labeling discipline matters more than ever.

Why Amazon Ended Commingling

Amazon's leadership has pointed to two main reasons for the change. First, the company's logistics network has matured to the point that fast delivery no longer depends on pooled inventory — most sellers now keep enough stock distributed across the network that shipping the "closest" unit doesn't require mixing supply. Second, pooled inventory had become an increasingly visible source of counterfeit and quality complaints, both from brands and from regulators.

Dharmesh Mehta, Amazon's Vice President of Selling Partner Services, framed the decision as a combination of improved network placement and virtual tracking technology that can attribute individual units to specific sellers without needing physical pooling. The bottom line: Amazon no longer needs commingling to deliver fast, and the downsides had clearly outweighed the benefits.

Historical Context: What Commingling Was and Why It Was Risky

Under the old system, sellers using Fulfillment by Amazon could opt into "Stickerless, Commingled Inventory" through Seller Central. Their products were pooled with identical units from other sellers and from Amazon's own inventory, all stored together under a shared manufacturer barcode. When a customer placed an order, Amazon shipped whichever matching unit was closest, regardless of who originally supplied it.

That arrangement created three categories of problems that drove a steady stream of suspensions and appeals work for our firm:

• Counterfeit exposure. Sellers who carefully sourced authentic product could still have customers receive counterfeit units pulled from another seller's pooled stock — and they were the ones who took the complaint, the negative review, and sometimes the Section 3 suspension under Amazon's Anti-Counterfeiting Policy.
• Quality and safety issues. Damaged, expired, or out-of-condition units from the pool were attributed to the seller who got the order. High return rates and safety complaints fed directly into Order Defect Rate metrics, regardless of fault.
• Loss of inventory control. Sellers had no oversight of which specific units were shipped to their customers, making it nearly impossible to prove provenance during an appeal.

The standard defensive move was to opt out of commingling by disabling the "Stickerless, Commingled Inventory" setting in Seller Central and applying unique FNSKU labels to every unit. That worked, but it cost real money — the $600 million figure Amazon cited is, in part, a measure of how widely brand owners adopted that workaround.

What You Need to Do Right Now

Whether you are a brand owner or a reseller, the actions below are time-sensitive. Shipments inbound to FBA are already being held to the new standard, and resellers without proper FNSKU labels are seeing units flagged as defective, delayed at receiving, or charged additional FBA prep fees.

If you are a brand owner

1. Verify your Brand Registry status. The new exemption only applies if you are enrolled in Amazon Brand Registry and have the Brand Representative selling role. Do not assume the role is correctly assigned — confirm in Seller Central before changing your prep workflow.
2. Audit your manufacturer barcodes. Make sure every product on your eligible ASINs carries a valid, scannable UPC, EAN, or ISBN. Damaged, missing, or duplicated barcodes will still trigger receiving problems.
3. Update your prep instructions. If you previously paid for re-stickering, instruct your manufacturer, 3PL, or prep center to stop. This is where the cost savings show up.
4. Keep records. Maintain invoices, supply-chain documentation, and authorized-distributor letters. Virtual tracking attributes units to your account, which means complaints are now even more clearly your responsibility — your defense in a Section 3 appeal depends on documented provenance.

If you are a reseller

1. Switch every SKU to FNSKU labeling. Even products you previously shipped stickerless under a manufacturer barcode now require an Amazon FNSKU label. There are no longer reseller exceptions for products with valid UPCs.
2. Choose a labeling path. Options include in-house labeling with a thermal printer, Amazon's FBA Label Service (verify current availability in Seller Central before relying on it), or a third-party prep center.
3. Update your sourcing math. Per-unit prep costs have risen for many resellers. Re-evaluate margin on low-ticket items where labeling cost may eat profitability.
4. Tighten supplier verification. With every unit traceable to you, sourcing from gray-market or unauthorized channels is more dangerous than ever — counterfeit complaints land squarely on the account that shipped the unit.

FNSKU labeling is now mandatory for all reseller FBA inventory.

Suspension Risk After Commingling Ends

The end of commingling reduces one specific category of suspension risk — the situation where a seller is held responsible for a counterfeit or substandard unit that physically came from another seller's stock. That category is largely going away, and that is genuinely good news.

But the new regime also raises the stakes in other ways:

• Every complaint now lands on the actual seller. If a customer receives a counterfeit, an inauthentic-item complaint goes to the account that shipped it — and post-March 2026, that is unambiguously your account. There is no longer a "it must have come from the pool" defense available.
• Section 3 violations are still the leading reason for deactivation. Inventory traceability is now better, but Amazon's enforcement under Section 3 of the Business Solutions Agreement has not loosened. If anything, the cleaner tracking makes Amazon's case easier to build.
• Listing hijacking and IP complaints remain. Ending commingling does nothing to address third-party listing abuse, infringement complaints, or competitor sabotage. Those continue to be among the most common causes of deactivation we see at the firm.
• Reseller compliance failures are now binary. Either every reseller unit is FNSKU-labeled or it isn't. Repeated receiving defects can compound into account-health problems.

Suspended Despite the New Rules? Get Expert Help

If your account has been suspended or deactivated — whether tied to inventory issues, counterfeit complaints, Section 3 violations, or any other Amazon policy enforcement — the transition to a post-commingling system does not change how Amazon evaluates appeals. What changes is the documentation you need to prove the unit was yours, sourced legitimately, and handled in compliance with current FBA rules.

AMZ Sellers Attorney® represents Amazon sellers worldwide in reinstatement and appeal matters. We review your account, identify the cause of the enforcement action, draft a tailored Plan of Action, and advocate for restoration of your selling privileges. Our team stays current on Amazon's evolving policies — including the 2026 commingling changes — so your appeal reflects how Amazon is actually enforcing today, not how it enforced two years ago.

Get a Free Amazon Seller Consultation

Frequently Asked Questions

When does Amazon's commingled inventory program officially end?

Commingling ended on March 31, 2026, for inventory shipped on or after that date. The change was announced at Amazon's Accelerate 2025 conference and confirmed in Seller Central.

Do I still need FNSKU labels after March 31, 2026?

It depends on your seller type. Brand owners enrolled in Amazon Brand Registry with the Brand Representative role can continue using manufacturer barcodes (UPC, EAN, ISBN) on eligible products without applying FNSKU stickers. Resellers who are not Brand Registry brand representatives must apply Amazon FNSKU labels to every unit, even when the product already carries a manufacturer barcode. Products without any manufacturer barcode require FNSKU labels from all sellers, as has always been the rule.

Why is Amazon ending commingled inventory?

Amazon cited two main drivers: its logistics network now places inventory close enough to customers to maintain fast delivery without pooling, and pooled inventory had become a significant counterfeit and quality-control liability. Amazon also acknowledged that brand owners had spent an estimated $600 million in the past year on re-stickering products to opt out of commingling — a cost that the policy change eliminates for Brand Registry owners.

What happens if my shipment arrives after March 31, 2026 without proper FNSKU labels?

Resellers who send unlabeled inventory after the deadline risk having shipments flagged as defective, delayed at receiving, charged additional FBA prep and labeling fees, or, in repeated cases, contributing to policy-violation strikes against the account.

Does ending commingling eliminate counterfeit risk on Amazon?

It significantly reduces the type of counterfeit exposure that came from pooled inventory, because each unit is now traceable to a specific seller. It does not eliminate counterfeit risk altogether — listings can still be hijacked, complaints can still trigger suspensions, and inauthentic-item complaints continue to be a leading cause of deactivation. The specific risk of being held responsible for another seller's counterfeit unit shipped from a shared bin is what's going away.

I'm a brand owner — what do I actually save?

Most brand owners enrolled as Brand Representatives save the labor and material cost of applying FNSKU stickers to every FBA unit. Some sellers report this is in the range of several thousand dollars per month on higher-volume catalogs. It also simplifies multi-channel logistics, because the same inventory can ship to Amazon and to other sales channels without separate FBA-specific prep.

How can AMZ Sellers Attorney® help with the 2026 transition?

AMZ Sellers Attorney® advises FBA sellers facing suspensions tied to inventory, counterfeit, or Section 3 violations, drafts Plans of Action for reinstatement, and helps clients document supply-chain compliance under Amazon's new post-commingling regime.

Bottom Line for 2026

The end of commingled inventory is the most significant FBA operational change in years. For Brand Registry owners, it removes a long-standing tax on doing business — manufacturer barcodes are once again sufficient, and the re-stickering burden is gone. For resellers, it raises the operational bar — FNSKU on every unit, no exceptions for products with manufacturer barcodes, and tighter accountability for everything that lands in customers' hands.

The constants haven't changed. Source authentic product. Document everything. Respond quickly when Amazon flags something. And if your account is suspended despite doing everything right, AMZ Sellers Attorney® is here to fight for reinstatement.

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This article is for informational purposes only and does not constitute legal advice. Policies and dates described are accurate as of the article's update date; readers should verify current Amazon Seller Central documentation before acting.