What Walgreens expects in the 856
Walgreens trades on X12 4010 over AS2. Beyond the base standard, watch these:
How EDISQ maps it
The certified Walgreens 856 map loads when you enable the partner — fields auto-map from NetSuite, QuickBooks, Dynamics, and 33 other systems, validation runs against Walgreens's spec before transmission, and the sandbox replays Walgreens test scenarios until everything passes.
Common rejection reasons
Nearly all 856 rejections trace to reference data, not syntax: identifiers that don't match Walgreens's cross-references, echoed fields dropped from the original PO, or timing that misses the program window. EDISQ flags each before Walgreens ever sees the document.
Sample Walgreens 856
A representative 856 interchange addressed to Walgreens — envelope, shipment→order→pack→item hierarchy, and control totals:
1ISA*00* *00* *ZZ*ACMESUPPLY *ZZ*WALGREENS *260101*1200*U*00401*000000001*0*P*>~ 2GS*SH*ACMESUPPLY*WALGREENS*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*WALGREENS 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 Walgreens use?
X12 4010, delivered over AS2. The certified map tracks Walgreens's current companion guide.
How do I test a Walgreens 856?
The sandbox generates realistic Walgreens 856 scenarios against your live mapping — free, unlimited, invisible to Walgreens.
What does it cost?
Per document only: first 25/month free, then from $0.50, decreasing with volume. No partner or mapping fees.