Public sources reviewed 2026-08-12
What the public record confirms
- Walmart publishes an EDI interface for its drop-ship vendor program and documents an X12 850 purchase-order flow.
- Walmart's 2026 supply-chain guide describes 856 ASN and 824 testing in its Vendor Self-Test Portal for applicable supplier programs.
- The applicable lane, transport, version, identifiers, and required fields still come from the current Walmart program instructions.
What documents they require
Walmart publishes program-specific EDI material. Use these as planning flows only, then map the exact lane and version named in your current invitation: Exact specifications come from your partner packet. Treat this as a planning checklist, not a substitute for the current implementation guide.
- 850 purchase order — publicly documented for Walmart.com drop-ship EDI; confirm your program and version document guide →
- 855 purchase-order response — evaluate when included in the current buyer packet document guide →
- 856 advance ship notice — Walmart publicly documents ASN testing for applicable supplier programs document guide →
- 810 invoice and 997/824 acknowledgements — confirm the required direction, timing, and error path document guide →
Connectivity and testing requirements
Connectivity
Confirm whether the current Walmart program uses AS2, SFTP, VAN, or another named transport.
Planning range
Walmart-controlled; no single public fixed timeline
Certification focus
Readiness depends on the assigned banner and program, access to Walmart supplier systems, the current implementation guide, sample quality, and Walmart's testing approval. Do not schedule go-live from a generic week estimate.
Questions to resolve from the current buyer packet
- Confirm whether the invitation is for stores, Sam's Club, Walmart.com drop ship, or another program.
- Record the current X12 version, sender/receiver identifiers, transport, and acknowledgement rules.
- Confirm ASN hierarchy, label/SSCC data, invoice matching, and the buyer's test-to-production approval path.
How SignalEDI handles it
- Turn the current buyer-issued implementation guide into a versioned mapping and testing checklist.
- Validate synthetic or scrubbed 850, 855, 856, and 810 samples before the buyer-controlled certification step.
- Connect accepted order, shipment, and invoice data to supported QuickBooks or API workflows without re-keying it.
Review mapping and validation in the self-serve workspace before partner testing. Developer quickstart
Pricing
SignalEDI publishes flat monthly EDI pricing: Seasonal $99, Starter $199, Growth $499, and Enterprise $1999 per month. There are no standard per-document fees. Finite plans alert you before the included monthly allowance is reached and pause new processing at the allowance until you upgrade; Enterprise is unlimited.
Compare current plansAuthoritative sources
Source review date: 2026-08-12. Links below establish only the facts described; your current buyer-issued materials remain authoritative for program-specific technical requirements.
- Walmart supplier EDI interface — Walmart
Supports: Public drop-ship EDI interface, transport notes, and documented file families.
- Walmart 850 purchase-order guide — Walmart
Supports: Public X12 850 guidance for the documented supplier program.
- Walmart 2026 supply-chain packaging guide — Walmart
Supports: ASN purpose and the buyer-controlled 856/824 testing path for applicable programs.
FAQ
- What EDI documents does Walmart typically require?
- Walmart publishes program-specific EDI material. Use these as planning flows only, then map the exact lane and version named in your current invitation: Typical sets include: 850 purchase order — publicly documented for Walmart.com drop-ship EDI; confirm your program and version; 855 purchase-order response — evaluate when included in the current buyer packet; 856 advance ship notice — Walmart publicly documents ASN testing for applicable supplier programs; 810 invoice and 997/824 acknowledgements — confirm the required direction, timing, and error path Exact specs vary by commodity and program — always confirm against your trading partner packet.
- How long does Walmart EDI onboarding usually take?
- Many suppliers land in about Walmart-controlled; no single public fixed timeline, but timelines vary by category, testing waves, and exception cycles. Readiness depends on the assigned banner and program, access to Walmart supplier systems, the current implementation guide, sample quality, and Walmart's testing approval. Do not schedule go-live from a generic week estimate.
- How does SignalEDI help without hiring a full EDI team?
- Turn the current buyer-issued implementation guide into a versioned mapping and testing checklist. Validate synthetic or scrubbed 850, 855, 856, and 810 samples before the buyer-controlled certification step. Connect accepted order, shipment, and invoice data to supported QuickBooks or API workflows without re-keying it.
- Where can I see SignalEDI pricing?
- SignalEDI publishes flat monthly EDI pricing: Seasonal $99, Starter $199, Growth $499, and Enterprise $1999 per month. There are no standard per-document fees. Finite plans alert you before the included monthly allowance is reached and pause new processing at the allowance until you upgrade; Enterprise is unlimited.
Related EDI resources
- Customer requires EDI guide turns the buyer packet into a scoped implementation checklist.
- QuickBooks EDI integration can turn supported Walmart documents into reviewable QuickBooks drafts without re-keying.
- Managed EDI onboarding is an optional paid path when your team wants help coordinating the scoped partner workflow.
- EDI requirements checker drafts a local readiness checklist without saving buyer data.
Prepare your side for partner testing
SignalEDI can validate the documents and requirements your team controls. Partner approval follows the partner's schedule.
Connect nowTopics: Walmart EDI requirements · Walmart EDI compliance · Walmart supplier EDI · Retail Link EDI onboarding · Walmart 850 856 810