Two numbers govern every line of a Lowe's purchase order: the Lowe's item number and your manufacturer model number. They arrive together, they must resolve to the same product, and every downstream document is judged on whether they still agree. That cross-reference — more than any connectivity or mapping question — is the heart of Lowe's EDI compliance.
Item identity first
When a Lowe's 850 lands, each line pairs the retailer's internal item number with the model number from your own catalog. A cross-reference that translates cleanly in both directions keeps orders flowing into your ERP and keeps invoices matching on the way back; a stale one produces mismatches that surface days later as short-pays. Treat the item table as living data — every new item, every model-year change, updated before the first PO that uses it.
The document chain and its clock
Lowe's trades X12 4010 through the familiar sequence: 850 purchase order in, 855 acknowledgment out, 856 ship notice ahead of the freight, 810 invoice to close the loop, 997s confirming receipt throughout.
The clock to respect lives in the DTM segments: ship windows are enforced per program. The acknowledgment is where discipline starts — commit only to windows you can hit, because Lowe's vendor compliance measures delivery against what the documents promised. An honest 855 followed by an on-time ASN is the whole game.
Building an ASN Lowe's can receive
The 856 carries a hierarchy requirement that depends on where the freight is going. DC shipments expect the full order → tare → pack → item structure — pallets described as pallets, cartons nested beneath them. Store-direct shipments run simpler. Two habits keep the document clean:
- Build the hierarchy from what was physically loaded, not from what the order requested.
- Transmit before the delivery appointment; receiving plans against the ASN, and a document that arrives after the truck is operationally useless.
Deductions and how to not earn them
Lowe's vendor compliance covers the territory you would expect — order confirmation, shipping accuracy, on-time performance. The document-driven portion of that exposure is deterministic: a validated 850-to-810 flow, cross-references kept current, and ASN timing tied to ship-confirm produce a scorecard with nothing on it. The suppliers who struggle are almost always the ones re-keying data between systems, where every touch is a chance to drift.
Same-day processing as a habit
None of the rules above are hard to satisfy once, by hand, on a quiet Tuesday. What Lowe's actually tests is whether you satisfy them on every order, including the ones that arrive Friday evening. That is an automation question. An inbound PO should land in your ERP the same day it transmits — items already translated through the cross-reference, ship-tos resolved, ready for the acknowledgment — and the outbound documents should generate from operational events: ship-confirm produces the ASN, the shipment record produces the invoice. When the flow runs on events instead of on someone's calendar, ship windows stop being deadlines anyone thinks about and become constraints the system simply meets.
Setup and what it costs
A new Lowe's supplier connects in four steps: vendor onboarding with Lowe's, ERP connection (NetSuite, Epicor Kinetic, or another of 30+ systems), cross-reference load, and a sandbox pass replaying Lowe's scenarios end to end. Expect 1–3 days for the EDI side on certified maps.
The bill afterward is strictly usage-based. EDISQ includes 25 documents free each month; past that, documents start at $0.50 and step down through volume tiers to $0.10, with each tier priced marginally against a $100/month Production minimum that applies in full to usage. AS2, SFTP, and VAN connectivity ride along at no extra charge, and nothing about Lowe's — or any partner — carries a setup or mapping fee. The pricing page has the full ladder.
FAQ
Which EDI documents does Lowe's trade?
The standard retail chain on X12 4010: 850 purchase order in; 855 acknowledgment, 856 ASN, and 810 invoice out; 997 acknowledgments both directions.
How does Lowe's identify items on a PO?
By Lowe's item number and the manufacturer model number together. Your cross-reference must hold both and translate in both directions on every document.
Are Lowe's ship windows strictly enforced?
Yes — DTM ship windows are enforced per program, and Lowe's vendor compliance tracks them. Acknowledge only dates you can meet, then tie the ASN to actual ship-confirm.
How long does Lowe's EDI setup take with EDISQ?
The EDI side — connection, cross-references, sandbox testing — typically runs 1–3 days on certified maps. Lowe's vendor onboarding sets the overall schedule.