What Walmart expects in the 856
Walmart trades on X12 5010 over AS2. Beyond the base standard, watch these:
How EDISQ maps it
The certified Walmart 856 map loads when you enable the partner — fields auto-map from NetSuite, QuickBooks, Dynamics, and 33 other systems, validation runs against Walmart's spec before transmission, and the sandbox replays Walmart test scenarios until everything passes.
Common rejection reasons
Nearly all 856 rejections trace to reference data, not syntax: identifiers that don't match Walmart's cross-references, echoed fields dropped from the original PO, or timing that misses the program window. EDISQ flags each before Walmart ever sees the document.
Sample Walmart 856
A representative 856 interchange addressed to Walmart — envelope, shipment→order→pack→item hierarchy, and control totals:
1ISA*00* *00* *ZZ*ACMESUPPLY *ZZ*WALMART *260101*1200*U*00401*000000001*0*P*>~ 2GS*SH*ACMESUPPLY*WALMART*20260101*1200*1*X*004010~ 3ST*856*0001~ 4BSN*00*SHIP0001*20260101*1200*0001~ 5HL*1**S~ 6TD1*CTN25*3****G*180*LB~ 7TD5*B*2*UPSN*M~ 8REF*BM*BOL000123~ 9DTM*011*20260105~ 10N1*ST*WALMART DC 5093*92*5093~ 11HL*2*1*O~ 12PRF*PO12345~ 13HL*3*2*P~ 14MAN*GM*00000123450000000017~ 15HL*4*3*I~ 16LIN**UP*012345678905~ 17SN1**24*EA~ 18CTT*4~ 19SE*17*0001~ 20GE*1*1~ 21IEA*1*000000001~
FAQ
Which 856 version does Walmart use?
X12 5010, delivered over AS2. The certified map tracks Walmart's current companion guide.
How do I test a Walmart 856?
The sandbox generates realistic Walmart 856 scenarios against your live mapping — free, unlimited, invisible to Walmart.
What does it cost?
Per document only: first 25/month free, then from $0.50, decreasing with volume. No partner or mapping fees.