The Walmart 850 Purchase Order, explained

What Walmart expects in the 850

Walmart trades on X12 5010 over AS2. Beyond the base standard, watch these:

How EDISQ maps it

The certified Walmart 850 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 850 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 850

A representative 850 interchange addressed to Walmart — envelope, body segments, and control totals:

1ISA*00*          *00*          *ZZ*ACMESUPPLY     *ZZ*WALMART        *260101*1200*U*00401*000000001*0*P*>~
2GS*PO*ACMESUPPLY*WALMART*20260101*1200*1*X*004010~
3ST*850*0001~
4BEG*00*SA*PO12345**20260101~
5REF*DP*056~
6DTM*002*20260110~
7N1*ST*WALMART DC 5093*92*5093~
8PO1*1*24*EA*9.75**UP*012345678905~
9PID*F****ACME WIDGET 24CT~
10PO1*2*12*EA*14.50**UP*012345678912~
11PID*F****ACME GADGET 12CT~
12CTT*2~
13SE*11*0001~
14GE*1*1~
15IEA*1*000000001~

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