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EDI Core 855
X12 Outbound

Core X12 855 Purchase Order Acknowledgment

X12 855 (Purchase Order Acknowledgment) is the EDI transaction exchanged between Core and its trading partners. Stacksync handles full compliance, mapping, and real-time delivery.

Segments
21
Loops
8
X12 855
All partners ↗

Schema reference

21 segments · 8 loops · X12 855 Purchase Order Acknowledgment

ISA

ISA Interchange Control Header

GS

GS Functional Group Header

ST

Transaction Set Header

BAK

Beginning Segment for Purchase Order Acknowledgment

REF

Reference Information

PER

Administrative Communications Contact

FOB

F.O.B. Related Instructions

Loop
SAC

Service, Promotion, Allowance, or Charge Information

DTM

Date/Time Reference

Loop
N9

Extended Reference Information

MTX

Text

Loop
PO1

Baseline Item Data

CTP

Pricing Information

Loop
PID

Product/Item Description

PO4

Item Physical Details

Loop
SAC

Service, Promotion, Allowance, or Charge Information

Loop
ACK

Line Item Acknowledgment

Loop
N9

Extended Reference Information

MTX

Text

Loop
CTT

Transaction Totals

SE

Transaction Set Trailer

Trading partners

8+ trading partners.
And every channel covered.

We connect to every major retailer, distributor, and 3PL on the EDI network. Type to search the directory, or browse the full catalogue.

Core EDI 855 FAQ

Common questions about 855 Purchase Order Acknowledgment with Core.

What is X12 855 Purchase Order Acknowledgment?
X12 855 (Purchase Order Acknowledgment) is the EDI transaction set used to exchange purchase order acknowledgment data. Core requires it from trading partners.
Does Core require 855 for trading partners?
Yes — Core supports X12 855 Purchase Order Acknowledgment. Stacksync handles the full integration so your team can focus on operations.
How fast can I integrate Core 855 with Stacksync?
Most companies go live with Core 855 on Stacksync in days. Pre-built mappings, no-code setup, and real-time monitoring make EDI compliance straightforward.

Ready to automate your Core EDI?

Most teams go live in days, not months. Talk to our team and we'll walk you through your specific setup.