Retailer EDI requirements
Walmart EDI requirements
ANSI X12 4010/5010 · AS2 (mandatory) · Portal: Retail Link · Typical onboarding: 4–8 weeks
Walmart-specific compliance context
- Retail Link is the vendor portal for certification and day-to-day compliance visibility.
- Typical onboarding window: 4–8 weeks before production cutover (partner-controlled).
- High chargeback exposure when ASN, invoice, or label rules drift.
Core EDI documents
Compliance requirements
- GS1/GTIN compliant product identification (UPC barcodes)
- GS1-128 shipping labels with SSCC codes
- AS2 security certificates must be exchanged before testing
- Certification testing required before go-live
- OTIF (On-Time In-Full) scorecard tracked in Retail Link
- Web EDI available for very low-volume suppliers only
Supplier programs & chargeback risk
Programs: Domestic, Direct Import, DSD, Marketplace
Chargeback exposure: High — automated chargebacks for ASN errors, late shipments, and invoice mismatches
Penalty amounts, fees, endpoints, and onboarding windows reflect each retailer's published routing guides and public sources and change frequently. Confirm current figures in the retailer's own vendor portal before relying on them.
Trading partner profile
See mandate context, connectivity options, and onboarding steps on the Walmart trading partner page.