WebEDI vs automation: an honest cost math
Walmart gives small suppliers WebEDI for free — a browser portal where you key documents field by field. EDI providers will tell you it's unsustainable (they sell the alternative). The truth depends on your volume. Here's the actual math.
What WebEDI really costs
Keying one ASN takes roughly 15–30 minutes of careful work: PO lookup, carton counts, SSCC entry, quantity checks. At 2 POs a week, that's an hour or two — fine. At 15 POs a week, it's a part-time job (~8–15 hrs/month), done by someone whose time costs $25–50/hour, with every keystroke a chargeback opportunity. The hidden line item isn't labor — it's themis-keyed ASN that quietly deducts from payments.
The three tiers, honestly
| Option | Cost | Right when… |
|---|---|---|
| WebEDI manual keying | Free + your time | A few POs a month, simple shipments, someone patient |
| Spreadsheet → generated EDI (FluentEDI's approach) | Flat monthly fee | Weekly shipping from a warehouse/3PL spreadsheet; you want validation without an EDI contract — files upload to the same WebEDI portal |
| Full-service provider (SPS, TrueCommerce…) | $1k+ setup, $120–300+/mo | Hundreds of documents/month, multiple retailers, ERP integration — see our honest SPS comparison |
The detail most comparisons skip: WebEDI accepts file uploads
You don't have to key documents into WebEDI — the portal also accepts uploading an EDI file generated elsewhere, and returns the 997 acknowledgment for download. That means the middle tier exists: generate a valid 856 from your shipment spreadsheet, upload it in one click, stay on the free portal. That's precisely the workflow FluentEDI is built around.
When to switch, by signal
- Stay manual while POs are rare and your error rate is zero.
- Move to generated files the week keying feels like a job, or after your first mechanical chargeback.
- Move to full-service when you cross WebEDI's ~5,500 docs/year threshold (Walmart expects AS2 beyond it) or add your third retailer.