COMDIS — EDIFACT Commercial Dispute Message (D.96A)

The COMDIS message is the formal notification of a commercial dispute between a buyer and a supplier: it carries the identification of the disputed document (invoice, order, delivery), the nature of the disagreement, the contested amounts and the related supporting evidence. It sits in the invoicing → dispute → resolution cycle ahead of any payment hold. This page summarises the segment structure as published by UN/CEFACT for directory D.96A.

Purpose

The COMDIS message is the formal notification of a commercial dispute between a buyer and a supplier: it carries the identification of the disputed document (invoice, order, delivery), the nature of the disagreement, the contested amounts and the related supporting evidence. It sits in the invoicing → dispute → resolution cycle ahead of any payment hold.

This page focuses on the structure published by UN/CEFACT for directory D.96A. The segments listed, their status (M / C), position and repetition factor are extracted from the official file comdis_s.htm hosted on service.unece.org.

Segment structure

The COMDIS D.96A message has 25 header entries, 0 detail entries and 0 summary entries (segments and groups combined). Groups are shown in bold and their members are indented by actual nesting depth.

Header

Detail

No segment in this section.

Summary

No segment in this section.

Changes vs D.96A

This page documents directory D.96A itself: it serves as the reference for every other version of the message. The synthesis below describes the structural changes that later directories will introduce relative to it.

No top-level differences detected between D.96A and D.96A for this message. Differences are then limited to nested groups and code lists.

Structural example

Minimal example of an COMDIS D.96A message with mandatory segments only. The goal is to show the exact version declared in UNH (COMDIS:D:96A:UN) — not to replicate a full business case.

UNB+UNOC:3+5410000000123:14+5410000000456:14+260514:1430+CTRL096001'
UNH+1+COMDIS:D:96A:UN'
BGM+706+COMDIS-2026-D-0073+9'
RFF+IV:INV-2026-7811'
DTM+171:20260512:102'
CUX+2:EUR:4'
NAD+BY+5410000000123::9'
NAD+SU+5410000000456::9'
CTA+IC+:Litiges Comptabilité'
COM+litiges@example.com:EM'
DOC+380+INV-2026-7811'
MOA+125:420.00'
AJT+1+:::Quantity discrepancy on line 1'
INP+8+:Return delivery in progress'
DLI+1+1++3520000001234:EN'
UNT+15+1'
UNZ+1+CTRL096001'

Common errors

• Misaligned UNH tokens — The UNH+...+COMDIS:D:96A:UN token must reflect exactly the directory in use — a mismatch between the UNH release and the release agreed with the partner is rejected by every strict validator.
• Wrong UNT segment count — The value after UNT+ must include UNH and UNT themselves. By far the most common sender-side error, regardless of the directory in use.
• Stale code lists — Between D.96A and D.96A, several code lists received new qualifiers (DTM status, RFF qualifier, NAD codes…). Reusing an older directory’s code tables triggers warnings or even rejections depending on the partner’s strict-conformance mode.

Related messages

Other versions of this message available on ediverse.io: COMDIS D.01B, COMDIS D.10A, COMDIS D.16B, COMDIS D.21B, COMDIS D.24A, COMDIS D.99B, COMDIS D.05A, COMDIS D.08A, COMDIS D.18B.

X12 functional equivalent: X12 826.

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