Walmart EDI Integration

Walmart EDI integration enables suppliers to electronically exchange critical business documents with Walmart, including purchase orders, advance ship notices (ASNs), invoices, and payment confirmations. As one of the world’s largest retailers, Walmart enforces strict EDI compliance standards to ensure accuracy, speed, and transparency across its supply chain. A properly implemented Walmart EDI solution helps suppliers automate transactions, reduce chargebacks, accelerate order-to-cash cycles, and maintain full compliance with Walmart’s vendor requirements.

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Walmart EDI Integration – Complete Guide for Suppliers & Vendors

Walmart EDI is a mandatory electronic data interchange system that allows suppliers to exchange business documents such as purchase orders, invoices, and shipping notices with Walmart. Proper Walmart EDI integration ensures faster order processing, reduced errors, and full compliance with Walmart supplier requirements.

What Is Walmart EDI?

Walmart EDI (Electronic Data Interchange) is a standardized method used by Walmart to electronically exchange business documents with its suppliers. Instead of manual processes like emails or spreadsheets, Walmart EDI automates data transfer directly between systems, improving efficiency and accuracy.

  • Automated purchase order processing
  • Real-time shipment visibility
  • Faster invoicing and payments
  • Reduced manual errors
  • Improved supplier compliance

Mandatory Walmart EDI Documents

To remain compliant, suppliers must support specific Walmart EDI transaction sets:

EDI Code Document Name Purpose
EDI 850 Purchase Order Order issued by Walmart
EDI 855 Purchase Order Acknowledgment Order confirmation or rejection
EDI 856 Advance Ship Notice (ASN) Shipment and carton details
EDI 810 Invoice Billing Walmart
EDI 997 Functional Acknowledgment Confirms receipt of EDI documents
EDI 820 Payment Order / Remittance Payment information
EDI 864 Text Message Special instructions or notices

Walmart EDI Compliance Requirements

Walmart has strict EDI compliance standards to maintain supply chain efficiency. Suppliers must meet the following requirements:

  • Accurate and timely ASN submission
  • Correct GS1-128 carton labeling
  • Valid item, PO, and shipment data
  • Successful EDI testing before production
  • Consistent on-time document transmission

Failure to comply with Walmart EDI standards can result in chargebacks, delayed payments, or supplier scorecard penalties.

Common Walmart EDI Challenges

  • Complex EDI mapping requirements
  • ASN and label mismatches
  • Manual data entry errors
  • ERP integration difficulties
  • High chargeback risk

How Walmart EDI Integration Works

  1. Walmart sends an EDI 850 Purchase Order
  2. Supplier responds with EDI 855 Acknowledgment
  3. Shipment is created and EDI 856 ASN is sent
  4. Supplier submits EDI 810 Invoice
  5. Walmart sends EDI 820 Payment Remittance

Walmart EDI Integration Options

1. Walmart Retail Link (Manual Process)

Suitable for low-volume suppliers but prone to errors and not scalable.

2. Third-Party Walmart EDI Provider (Recommended)

Automated EDI workflows integrated with ERP systems. Ideal for scalability, accuracy, and compliance.

3. In-House EDI System

Requires technical expertise and ongoing maintenance. Higher long-term costs.

ERP Systems Supported for Walmart EDI

Walmart EDI Chargebacks and How to Avoid Them

Common reasons for Walmart EDI chargebacks include:

  • Late or missing ASN
  • Incorrect carton labels
  • Quantity or price mismatches
  • Invalid invoice data

Automated Walmart EDI validation and real-time monitoring significantly reduce chargeback risks.

Why Choose a Managed Walmart EDI Solution?

  • Faster Walmart EDI onboarding
  • Reduced operational costs
  • Improved data accuracy
  • Scalable multi-retailer support
  • Dedicated EDI compliance support

Cogential IT Advantage: Smart EDI Made Simple

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Simplified EDI

We have expert EDI specialists who make EDI simple, easier and hassle free.
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Dedicated Solutions

We extend and integrate EDI expertise that is specific to your business needs and objectives.
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Industry Oriented

Our specific EDI solutions are tailor-made with any industry that you decide to do business with.
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Reliable Support

We provide 24/7 dedicated support to ensure delivery of great EDI solutions.

FAQs

Is Walmart EDI mandatory for suppliers?
How long does Walmart EDI onboarding usually take?
Is Walmart EDI suitable for small and mid-sized businesses?
What happens if Walmart EDI compliance is not maintained?
How can suppliers reduce Walmart EDI chargebacks?
Do suppliers need EDI testing before going live with Walmart?
Can Walmart EDI be integrated with existing ERP systems?
What is the best way to get started with Walmart EDI integration?

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