What Patterson Veterinary expects in the 855
Patterson Veterinary trades on X12 4010 over AS2. Beyond the base standard, watch these:
How EDISQ maps it
The certified Patterson Veterinary 855 map loads when you enable the partner — fields auto-map from NetSuite, QuickBooks, Dynamics, and 33 other systems, validation runs against Patterson Veterinary's spec before transmission, and the sandbox replays Patterson Veterinary test scenarios until everything passes.
Common rejection reasons
Nearly all 855 rejections trace to reference data, not syntax: identifiers that don't match Patterson Veterinary's cross-references, echoed fields dropped from the original PO, or timing that misses the program window. EDISQ flags each before Patterson Veterinary ever sees the document.
Sample Patterson Veterinary 855
A representative 855 interchange addressed to Patterson Veterinary — envelope, body segments, and control totals:
1ISA*00* *00* *ZZ*ACMESUPPLY *ZZ*PATTERSONVETERI*260101*1200*U*00401*000000001*0*P*>~ 2GS*PR*ACMESUPPLY*PATTERSONVETERI*20260101*1200*1*X*004010~ 3ST*855*0001~ 4BAK*00*AC*PO12345*20260101~ 5PO1*1*24*EA*9.75**UP*012345678905~ 6ACK*IA*24*EA~ 7PO1*2*12*EA*14.50**UP*012345678912~ 8ACK*IA*12*EA~ 9CTT*2~ 10SE*8*0001~ 11GE*1*1~ 12IEA*1*000000001~
FAQ
Which 855 version does Patterson Veterinary use?
X12 4010, delivered over AS2. The certified map tracks Patterson Veterinary's current companion guide.
How do I test a Patterson Veterinary 855?
The sandbox generates realistic Patterson Veterinary 855 scenarios against your live mapping — free, unlimited, invisible to Patterson Veterinary.
What does it cost?
Per document only: first 25/month free, then from $0.50, decreasing with volume. No partner or mapping fees.