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