EDI Guides & Articles
Written and reviewed by practicing EDI professionals — transaction deep-dives, mapping walkthroughs, and troubleshooting playbooks.
X12 850 Purchase Order: Complete EDI Guide
A complete, segment-by-segment walkthrough of the X12 850 Purchase Order — what it is, how it's structured, how to map it, and how to troubleshoot the errors that show up most often in production.
X12 856 Advance Ship Notice: The Complete EDI Guide
Everything you need to build, validate, and troubleshoot an X12 856 ASN — including the HL hierarchy that trips up almost every new implementation.
X12 270/271 Eligibility Inquiry and Response: A Practical Guide
How the HIPAA X12 270/271 pair works together to verify patient insurance eligibility in real time, with the segment structure and benefit codes that matter most.
EDIFACT ORDERS: A Complete Guide to the International Purchase Order Message
How UN/EDIFACT ORDERS compares to the X12 850, its segment structure, and what to watch for when trading with European and global manufacturing partners.
EDI Mapping Explained: From ERP Fields to X12 and EDIFACT Segments
A practical guide to how EDI mapping actually works — the concepts, common source formats, and a worked example translating SAP IDoc fields into an X12 850.
The X12 997 Functional Acknowledgment: What It Confirms (and What It Doesn't)
A clear breakdown of what a 997 actually validates, how to read its AK segments, and why it's not the same thing as business-level order confirmation.