Fulfill Walmart Marketplace orders automatically using your Amazon FBA inventory with guaranteed BLANK_BOX unbranded packaging. Protect your profit margins in real-time with automated price floor defense.
Trusted by 7- and 8-figure Amazon FBA Brands & Walmart Pro Sellers
Walmart strictly penalizes sellers for branded packaging, shipping delays, and inventory stockouts. Here is how Commerce Relay eliminates the risk.
featureName: BLANK_BOX constraint. Orders are only routed in 100% unbranded packaging.
Fully automated, resilient, and logged in real time from purchase to door.
Polls released purchase orders via Walmart US REST APIs and verifies HMAC signatures on real-time webhooks.
Resolves Walmart SKUs to Amazon ASIN/FBA SKUs, checks available units against the safety stock buffer, and confirms margin compliance.
Dispatches outbound shipment request to Amazon SP-API with the non-negotiable constraint: BLANK_BOX Required.
Receives carrier updates (FedEx, UPS, USPS) from SQS notifications and updates Walmart with confirmed tracking numbers.
Everything high-volume enterprise e-commerce merchants require in an operations hub.
Configure percentage or fixed markup rules on top of Amazon pricing. The system calculates cost basis, commissions, and fulfillment fees, automatically holding your price floor.
Operate multiple Walmart seller accounts and Amazon merchant tokens from a single centralized dashboard. Easily switch between brands with isolated catalog rules.
Generate and download ITEM catalog and INVENTORY analytical reports. Background pollers automatically monitor report readiness and provide instant streaming previews.
All marketplace secrets, refresh tokens, and client keys are protected using AES-256-GCM hardware encryption at the database cast level with zero plaintext leaks.
Fulfill directly from your regional warehouse facilities when FBA inventory runs lean. Includes custom USPS/FedEx packing slip generation with standard Walmart specs.
Dedicated queue listeners process order tracking updates as soon as Amazon FCs hand off parcels to carriers, updating Walmart customers within seconds.
See how much revenue and margin floor defense Commerce Relay saves your business every month.
Built ground-up with policy compliance and algorithmic price defense.
| Key Capability | Commerce Relay Enterprise | Manual Fulfillment | Generic Multichannel Tools |
|---|---|---|---|
| Guaranteed BLANK_BOX Packaging | 100% Hard Enforced | Manual checkbox | Often missed (suspension risk) |
| Real-Time Margin Floor Defense | Sub-200ms SP-API Ingest | None (reactive) | Lagged / 24-hr batching |
| Safety Stock Buffer Protection | Dynamic per SKU | None | Basic global buffer |
| Carrier & Tracking Auto-Push | Instant SQS Webhook | Hours of copy-pasting | Delayed polling (up to 4 hrs) |
| Credential Encryption at Rest | AES-256 Hardware Cast | N/A | Shared DB plaintext |
See what high-scale sellers say about their Commerce Relay operations.
"Before Commerce Relay, we had two Walmart warnings for Amazon Prime branded tape. Since switching to Commerce Relay, every single order dispatches as unbranded BLANK_BOX. Our Walmart store went from $20k to $140k/month without hiring more staff."
"The automated margin defense alone saved us over $18,000 during Q4 price drops. When Amazon sellers engaged in price wars, Commerce Relay held our Walmart profit floor automatically. It's the best SaaS tool in our stack."
Got questions about policy compliance and multi-channel fulfillment? We have answers.
Yes. Walmart's policy prohibits Amazon-branded packaging (boxes, tape, invoices). Amazon MCF provides unbranded "Blank Box" fulfillment specifically for cross-channel sellers. Commerce Relay enforces this constraint automatically on every order so your account remains 100% policy-compliant.
Commerce Relay continuously checks your Amazon SP-API pricing and adds your configured percentage or fixed markup. It calculates referral commissions and MCF fees. If an Amazon price drop would cause Walmart to sell below your specified Minimum Price Floor, Commerce Relay clamps the price at your profit floor.
Through Amazon SQS notification listeners and polling jobs, carrier tracking numbers (FedEx, UPS, USPS) are ingested and immediately pushed to Walmart's shipping confirmation API, ensuring your Walmart On-Time Shipping metrics stay pristine.
We use transparent at-rest encryption utilizing AES-256-GCM authenticated cipher casts. All client secrets, refresh tokens, and API keys are stored in encrypted physical blocks with strict tenant isolation.
Join high-volume marketplace merchants who automate cross-fulfillment and protect their profit margins with Commerce Relay.