Selling on both Amazon and Walmart opens the door to higher sales and wider reach — but it also doubles the complexity of compliance. Each platform has its own prep, labeling, and packaging rules, and mixing them up can lead to rejected shipments, delays, and extra fees. This is where a professional 3PL partner becomes essential, ensuring every unit meets the exact requirements of each marketplace.
Why Prep Compliance Matters on Amazon and Walmart
Amazon and Walmart enforce strict inbound standards to protect their fulfillment centers and customer experience. When sellers fail to comply, they risk:
Inbound shipment rejections
Delayed check-ins and restocks
Additional prep or relabeling fees
Performance score penalties
Lost sales due to downtime
For multi-channel sellers, even small prep mistakes can quickly compound.
Key Differences Between Amazon and Walmart Prep Requirements
Although similar in many ways, Amazon and Walmart have critical differences sellers must manage carefully.
Amazon FBA typically requires:
FN-SKU labels on each unit
Strict polybagging and suffocation warnings
Detailed carton content accuracy
Expiration date labeling for applicable products
Bundling rules with clear “Sold as Set” labels
Walmart WFS, on the other hand, focuses on:
GTIN/UPC-based labeling
Specific carton labeling formats
Different polybag and packaging tolerances
Strict inbound appointment requirements
Clear separation of Walmart and non-Walmart inventory
Confusing these requirements is a common cause of costly errors.
How 3PLs Keep Sellers Compliant on Both Platforms
A 3PL acts as a compliance bridge between Amazon and Walmart, ensuring inventory is prepped correctly every time.
Platform-Specific Prep Processes
3PLs maintain separate SOPs for Amazon and Walmart prep, so products are labeled, packed, and prepared according to each platform’s rules.
Accurate Labeling and Re-Labeling
Whether it’s FN-SKUs for Amazon or UPC-based labels for Walmart, 3PLs ensure the correct labels are applied — and incorrect ones are removed.
Quality Control Checks
Before shipping, 3PLs conduct inspections to confirm packaging, labeling, and carton details meet platform requirements.
Carton and Shipment Accuracy
3PLs verify carton weight, dimensions, and content accuracy to prevent inbound discrepancies that cause delays.
Flexible Multi-Channel Handling
Inventory stored at a 3PL can be prepped differently depending on where it’s going — Amazon today, Walmart tomorrow — without rework or confusion.
Benefits of Using a 3PL for Amazon & Walmart Prep
Reduced shipment rejections
Faster check-in times
Lower risk of platform penalties
Consistent compliance across channels
Less operational stress for sellers
By outsourcing prep, sellers eliminate guesswork and focus on scaling sales.
Why Southeast Fulfillment Is Trusted by Multi-Channel Sellers
At Southeast Fulfillment, we support both Amazon and Walmart sellers with platform-specific prep expertise. Our team stays up to date on changing requirements and ensures every shipment is compliant before it leaves our warehouse.
We provide:
Amazon FBA and Walmart WFS prep services
Dedicated quality control processes
Fast turnaround times
Clear communication and reporting
Scalable solutions for growing brands
Our goal is simple: protect your account health and keep your inventory moving.
Managing Amazon and Walmart prep requirements doesn’t have to be complicated. With a reliable 3PL partner, sellers can confidently expand across both platforms without risking compliance issues, delays, or lost sales.
Selling on Amazon and Walmart and worried about compliance?
👉 Partner with Southeast Fulfillment and let our expert team handle platform-specific prep — so your inventory stays compliant and ready to sell.