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