What Costco Canada expects in the 855
Costco Canada trades on X12 4010 over AS2. Costco Canada's 855 follows the standard X12 layout — no partner-specific companion-guide quirks are curated for this document yet. The certified base map covers the standard requirements, and validation still runs against the 855 spec before anything transmits.
How EDISQ maps it
The certified Costco Canada 855 map loads when you enable the partner — fields auto-map from NetSuite, QuickBooks, Dynamics, and 33 other systems, validation runs against Costco Canada's spec before transmission, and the sandbox replays Costco Canada test scenarios until everything passes.
Common rejection reasons
Nearly all 855 rejections trace to reference data, not syntax: identifiers that don't match Costco Canada's cross-references, echoed fields dropped from the original PO, or timing that misses the program window. EDISQ flags each before Costco Canada ever sees the document.
Sample Costco Canada 855
A representative 855 interchange addressed to Costco Canada — envelope, body segments, and control totals:
1ISA*00* *00* *ZZ*ACMESUPPLY *ZZ*COSTCOCANADA *260101*1200*U*00401*000000001*0*P*>~ 2GS*PR*ACMESUPPLY*COSTCOCANADA*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 Costco Canada use?
X12 4010, delivered over AS2. The certified map tracks Costco Canada's current companion guide.
How do I test a Costco Canada 855?
The sandbox generates realistic Costco Canada 855 scenarios against your live mapping — free, unlimited, invisible to Costco Canada.
What does it cost?
Per document only: first 25/month free, then from $0.50, decreasing with volume. No partner or mapping fees.