The Amazon Vendor Central 855 Purchase Order Acknowledgment, explained

What Amazon Vendor Central expects in the 855

Amazon Vendor Central trades on X12 4010 + EDIFACT (EU) over API + AS2. Amazon Vendor Central'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 Amazon Vendor Central 855 map loads when you enable the partner — fields auto-map from NetSuite, QuickBooks, Dynamics, and 33 other systems, validation runs against Amazon Vendor Central's spec before transmission, and the sandbox replays Amazon Vendor Central test scenarios until everything passes.

Common rejection reasons

Nearly all 855 rejections trace to reference data, not syntax: identifiers that don't match Amazon Vendor Central's cross-references, echoed fields dropped from the original PO, or timing that misses the program window. EDISQ flags each before Amazon Vendor Central ever sees the document.

Sample Amazon Vendor Central 855

A representative 855 interchange addressed to Amazon Vendor Central — envelope, body segments, and control totals:

1ISA*00*          *00*          *ZZ*ACMESUPPLY     *ZZ*AMAZON         *260101*1200*U*00401*000000001*0*P*>~
2GS*PR*ACMESUPPLY*AMAZON*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~

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