Comparison
Best EDI for Walmart suppliers: what to look for
The best EDI setup for a Walmart supplier is a managed provider that Walmart has vetted, covering the full X12 document set Walmart requires (850, 855, 856, 810, 997) over AS2, with pricing you can see up front. Interlink Commerce is a Walmart Marketplace Approved Solution Provider with published tiers from $50/mo, dropship orders at a flat 25¢/order, and a days-not-weeks go-live.
What Walmart requires of your EDI
Walmart mandates EDI before you can ship: documents move over AS2 transport, and you must pass Walmart’s certification cycle before trading. The core document set every Walmart supplier exchanges:
- EDI 850 — Purchase Order
- EDI 855 — PO Acknowledgement
- EDI 856 — Advance Ship Notice (ASN)
- EDI 810 — Invoice
- EDI 997 — Functional Acknowledgement
Suppliers shipping through a 3PL also add the warehouse set (940/945), and Walmart Stores DSV programs carry their own flows. Compliance failures — late or malformed ASNs, label errors — trigger chargebacks, which is why monitoring matters as much as mapping.
What to look for in a Walmart EDI provider
- Walmart credentials. A Walmart Marketplace Approved Solution Provider has been vetted by Walmart itself — few EDI vendors carry the credential.
- Full document coverage. All required X12 documents plus Marketplace, Stores (DSV), and 3PL warehouse flows — not just the basic four.
- Certification handled for you. Walmart’s portals and test cycle are unfamiliar and time-consuming; a managed provider runs them so you don’t.
- Integration, not a portal to babysit. EDI should land in your ERP or 3PL automatically — an inbound 850 becomes a sales order, shipping generates the 856 and 810.
- Transparent pricing. You should know what compliance costs before you sign, including what a slow month costs (ideally: nothing).
How the main providers compare for Walmart
| Interlink Commerce | SPS Commerce | TrueCommerce | |
|---|---|---|---|
| Walmart Marketplace Approved Solution Provider | Yes | Not positioned as a differentiator | Not positioned as a differentiator |
| Pricing | Published tiers from $50/mo; dropship 25¢/order | Quote-based | Quote-based |
| Billing | No Transaction, No Invoice: quiet months cost nothing | Monthly minimums typically apply | Quote-dependent |
| Service model | Fully managed, certification handled for you | Managed and self-service options | Managed and software options |
| Go-live | Days, not weeks; first partner onboarding free | Varies; setup fees common | Varies |
SPS Commerce and TrueCommerce are trademarks of their respective owners. Comparison reflects publicly described positioning and pricing models, not negotiated quotes; confirm current terms with each vendor. Both support Walmart connections.
Where to go deeper
- Walmart EDI integration with Interlink — the full setup: transport, documents, certification, and monitoring.
- Pricing calculator — put in your monthly document volume and get your exact number.
- SPS Commerce alternatives — the wider field, if you’re comparing beyond Walmart.