Retail EDIFACT — Dunnes, Musgrave, Tesco, Lidl, Aldi

Irish grocery retail exchanges its orders, dispatch advices and invoices over EANCOM — the subset of the UN/EDIFACT standard maintained by GS1 for retail. The grocery market is dominated by a duopoly: Dunnes Stores and the Musgrave group (which operates SuperValu and Centra), followed by Tesco Ireland, Lidl and Aldi. These B2B flows are large and long-established — quite separate from the recent public Peppol channel.

History — the Dunnes / Musgrave duopoly

Irish retail formed around two powerful domestic players. Dunnes Stores, a family business founded in 1944, is one of the country's largest chains. The Musgrave group, based in Cork, runs a franchise and wholesale model: it supplies the SuperValu and Centra brands, ubiquitous in towns and rural areas. Both adopted EDI early to run complex supply chains.

International players followed: Tesco (entering the Irish market in 1997 by acquiring Power Supermarkets) and the German discounters Lidl and Aldi, which imposed their own pan-European EDI standards on Irish suppliers.

Governance — GS1 Ireland + retailers

GS1 Ireland is the national organisation that assigns GS1 company prefixes, GLNs and GTINs, and publishes the EANCOM implementation guidelines tailored to the Irish market. Each retailer then issues its own EDI implementation guidelines specifying expected segments, mandatory codes and transmission windows.

Suppliers usually connect via a VAN (Value Added Network) or an EDI provider (Celtrino, the long-established Irish operator, as well as TrueCommerce, OpenText/GXS and others). The Irish GS1 prefix starts with 539, which makes an Irish-origin GLN recognisable at a glance.

Schema — EANCOM, ORDERS, DESADV, INVOIC

The order-to-cash cycle rests on a sequence of EANCOM messages:

EANCOM ORDERS message — retail purchase order (simplified extract)
=================================================================

UNH+ME000417+ORDERS:D:01B:UN:EAN010'
BGM+220+PO-2026-88231+9'
DTM+137:20260616:102'
NAD+BY+5390000011111::9'      <- Buyer (Dunnes Stores GLN)
NAD+SU+5391500099999::9'      <- Supplier (GLN)
NAD+DP+5390000022222::9'      <- Delivery point (warehouse GLN)
LIN+1++5099999000017:EN'      <- Item (GTIN/EAN-13)
QTY+21:480'
PRI+AAA:1.85'
UNS+S'
CNT+2:1'
UNT+12+ME000417'

GLN  = Global Location Number (13 digits, GS1) — identifies the retailer
       and every delivery point
GTIN = Global Trade Item Number (EAN-13) — identifies the product
Syntax : EANCOM (GS1 subset of UN/EDIFACT), directories D.96A / D.01B

Retail EDIFACT vs Peppol e-invoice

Adoption — the Irish retailers

• Dunnes Stores — major family chain, EDI required from food and non-food suppliers.
• Musgrave (SuperValu + Centra) — wholesale/franchise model, central EDI for upstream distribution.
• Tesco Ireland — EDI standards aligned with the Tesco group (historically including Tesco Connect / Tradanet).
• Lidl — strict pan-European EDI requirements, EANCOM + supplier portals.
• Aldi — discount model, tight assortment, standardised multi-country EDI.
• Others: BWG Foods (Spar, Mace, Londis), wholesalers, pharmacies (pharma cold chain — see dedicated page).

Common pitfalls

• Confusing GLN and GTIN. GLN = location/partner (13 digits), GTIN = product (EAN-13). Swapping them in an ORDERS or DESADV breaks order/delivery matching.
• Ignoring per-retailer guidelines. Each retailer has its mandatory segments and codes; a "generic EANCOM" message is often rejected.
• Believing Peppol replaces retail EDI. Irish retail remains heavily on EANCOM/VAN; Peppol is primarily B2G. The two coexist.
• Wrong EDIFACT directory. D.96A and D.01B coexist; sending the wrong directory version causes parsing errors at the partner.
• Omitting the DESADV before delivery. Many retailers require the dispatch advice (DESADV) with SSCC for cross-docking; its absence blocks goods receipt.

Cross-links

• Ireland hub — full view
• Pharma & medtech EDI — Pfizer, J&J, Medtronic
• Tech multinational EDI — Apple, Intel, Google
• Identifiers — PPSN, TRN, VAT number, CRO
• OGP — Peppol Authority B2G 2019
• GS1 Ireland — EANCOM standards