What is an LPN Number on Amazon? A Complete Guide

Managing inventory on Amazon involves a vast and complex logistical system designed to ensure seamless fulfillment of millions of products. One essential component of this system is the LPN number, also known as the License Plate Number. If you’re a seller, you may have noticed an LPN number on returned items or products stored in Amazon warehouses. But what exactly does it mean, and how does it impact your business?

In this guide, we’ll explore the purpose of LPN numbers, their role in Amazon’s inventory management, and how understanding them can help you navigate returns, track products, and improve your operational efficiency.


What is an LPN Number on Amazon?

An LPN (License Plate Number) is a unique identifier assigned to individual units of inventory within Amazon’s fulfillment centers. These numbers are primarily used by Amazon to:

  • Track and manage inventory efficiently within its warehouses.
  • Identify products during the fulfillment process.
  • Ensure proper handling and sorting of returns.

Unlike other product identifiers like ASINs (Amazon Standard Identification Numbers) or FNSKUs (Fulfillment Network Stock Keeping Units), LPN numbers are not directly tied to the product listing. Instead, they serve as a temporary barcode that allows Amazon to track specific units of inventory as they move through the fulfillment or returns process.


Where Do You Find LPN Numbers?

You’ll typically encounter LPN numbers in the following situations:

  1. Returned Products:
    • When a customer returns a product, it may come back with an LPN sticker attached. This number helps Amazon track the returned unit and determine its next steps (e.g., restocking, repackaging, or disposal).
  2. Warehouse Operations:
    • LPN numbers are used internally within Amazon’s fulfillment centers to locate and manage specific items.
  3. Seller Inventory Checks:
    • If you request a removal order or conduct an inventory inspection, you might see LPN numbers associated with specific units.

Why Does Amazon Use LPN Numbers?

LPN numbers play a critical role in Amazon’s inventory management system. Here’s why they’re important:

1. Tracking Individual Units

Amazon handles millions of products daily, and many of those products are identical in nature (e.g., multiple sellers offering the same item). LPN numbers allow Amazon to track individual units, ensuring each item is handled correctly, even when it’s part of a larger batch.

2. Returns Processing

When a product is returned, Amazon uses the LPN number to:

  • Identify the exact unit returned by the customer.
  • Determine its condition and whether it can be resold.
  • Process refunds or replacements accurately.

3. Preventing Errors

By assigning LPN numbers, Amazon minimizes the risk of mixing up similar products, especially during returns or restocking.

4. Efficient Fulfillment

LPN numbers enable precise location tracking within Amazon warehouses, ensuring products are picked, packed, and shipped quickly.


How Do LPN Numbers Differ From Other Identifiers?

Amazon uses several unique identifiers to manage products. Here’s how LPN numbers differ from other commonly used identifiers:

IdentifierPurposeExample
ASINIdentifies a product in the Amazon catalog. Used for searching and listing products.B07XYZ1234
FNSKUIdentifies a product specific to a seller within Amazon’s fulfillment network.X000ABCD12
UPC/EANUniversal product identifiers assigned by the manufacturer.0123456789012
LPNTemporary identifier for tracking specific units of inventory, primarily for internal use.LP123456789012

The key difference is that while ASINs, FNSKUs, and UPCs are permanent and tied to product listings, LPN numbers are temporary and assigned to individual units for internal tracking purposes.


What Happens When You See an LPN Number on a Product?

Sellers often encounter LPN numbers when they receive returned products. Here’s what it typically means:

  1. Returned Inventory:
    • The LPN number on a returned product indicates that it has been processed through Amazon’s returns system. Amazon assigns this number to track the returned unit.
  2. Inspect for Condition:
    • Sellers should carefully inspect returned items with LPN numbers. Check for signs of use, damage, or repackaging. If the product is in sellable condition, you can relist it. If not, you may need to request disposal or repair.
  3. Potential Resale Issues:
    • Some sellers report difficulty removing or relabeling items with LPN numbers. If the product has an LPN sticker, Amazon may require additional processing steps to make the unit eligible for resale.

How to Handle LPN Numbers as a Seller

Understanding and managing LPN numbers can improve your operational efficiency. Here are some tips for handling products with LPN stickers:

1. Inspect Returns Thoroughly

If a returned product has an LPN number, carefully check its condition before relisting it. Items with LPN stickers might have been opened, used, or damaged.

2. Remove LPN Stickers

For items you intend to resell, ensure the LPN sticker is removed or replaced with a valid FNSKU or UPC label. Leaving the LPN sticker can create confusion during future fulfillment processes.

3. Utilize Inventory Reports

Amazon provides inventory reports in Seller Central that include information about units with LPN numbers. Use these reports to track and manage affected items.

4. Work with Amazon Support

If you encounter issues with LPN numbers, such as restrictions on relisting, contact Amazon Seller Support for guidance.

5. Conduct Regular Inventory Audits

LPN numbers can sometimes indicate inventory discrepancies or issues with returns. Perform regular audits to ensure your inventory is accurate and all units are accounted for.


Common Questions About LPN Numbers

Q1: Can LPN Numbers Be Used to Track Products Outside Amazon?

No, LPN numbers are specific to Amazon’s internal processes and cannot be used outside of their system.

Q2: Are LPN Numbers Permanent?

No, LPN numbers are temporary and used only for tracking individual units within Amazon’s fulfillment network.

Q3: What Should I Do If I Receive a Product with an LPN Number?

Inspect the product for damage or signs of use. If it’s in sellable condition, ensure the LPN sticker is removed or replaced with an appropriate barcode (e.g., FNSKU).

Q4: Do All Amazon Products Have LPN Numbers?

No, LPN numbers are primarily assigned to returned items or units requiring additional processing.


Case Study: Managing LPN Returns

Scenario:
A private-label seller noticed that several returned units in their inventory had LPN stickers attached. These units were flagged as “unsellable” in Seller Central.

Solution:

  1. The seller requested an inventory removal order to inspect the units.
  2. Upon inspection, they found that some items were in perfect condition but had been labeled with LPN stickers during the return process.
  3. They removed the LPN stickers, relabeled the products with FNSKUs, and returned them to Amazon’s fulfillment center.

Result:
The seller successfully relisted the items, minimizing inventory losses and ensuring proper tracking for future sales.


Conclusion

LPN numbers are an essential part of Amazon’s inventory management system, helping the platform track and process individual units efficiently. While they are primarily used internally, sellers often encounter LPN numbers during returns or inventory checks. Understanding their purpose and knowing how to handle them can save you time, reduce errors, and improve your inventory management.

By inspecting returned products, removing LPN stickers, and leveraging inventory reports, you can navigate the complexities of Amazon’s logistics system with ease. Remember, if you ever face challenges related to LPN numbers, Amazon Seller Support is there to assist you.

Have you encountered LPN numbers in your Amazon business? Share your experiences or questions in the comments below—I’d love to hear from you! 🚀