The EDISQ blog

EDI, explained in plain English

Transaction explainers, retailer requirement guides, and pricing breakdowns — written for the people who ship product, not for EDI consultants.

✎

The EDI ISA ID, Explained: Qualifiers, Envelopes, and What to Send When a Retailer Asks

EDI basics · Sep 11, 2026

What an ISA ID is, how interchange qualifiers work, where the ID lives in the X12 envelope, and exactly what to send when a trading partner requests yours.

✎

What is AS2? The EDI Transport Explained

EDI basics · Aug 7, 2026

AS2 in plain English — how the protocol moves EDI documents, what MDNs and certificates do, and how it compares to SFTP and VANs.