EDI Document Validator

Check the structural integrity of your X12 or EDIFACT payload before transmission.

The tool automatically checks for ISA/GS (X12) or UNB/UNH (EDIFACT) headers.

Validation Result: SUCCESS (X12 850)

All segments present, terminators correct, and ISA/GS control numbers match.

Analysis ID: EDI-12345
Checked: 2026-04-12PASS

Summary of Findings

  • ISA Segment: Control Number (000000001) matches GS Control Number.
  • Segment Terminators: Correctly identified as '~' (Tilde).
  • ISA ID Check: Sender ID (MyAS2ID) and Receiver ID (PartnerAS2ID) present.
  • Transaction Set: 850 (Purchase Order) structure appears valid.

Frequently asked questions

What is the EDI X12 ISA segment definition?

The ISA segment defines the interchange control numbers, sender/receiver IDs, and functional group envelope details. Incorrect ISA IDs or control numbers are a primary cause of interchange rejection.

What does an EDI syntax check involve?

Syntax validation checks for correct segment terminators, element separators, correct segment ordering (e.g., GS before ST), and proper use of loop structures.

Does this validator support EDIFACT as well as X12?

Yes, this tool supports validation for both the ANSI ASC X12 standard (used heavily in North America for retail/healthcare) and EDIFACT (common in Europe and global logistics).

Ensure Your EDI Payload is Perfect.

Avoid partner rejections due to simple syntax errors. Validate your structure instantly.