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Spotlight PEPPOL BIS Billing 3.0 The EU e-invoicing mandate is here — France Sept 2026, Belgium Jan 2026, Germany 2025.

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Foundations

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Standards

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Flagship messages

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Tools

Slovak industrial EDI — the world's highest auto density per capita

With 4 car manufacturers (Volkswagen, Kia, Stellantis, Jaguar Land Rover) and more than one million vehicles assembled per year, Slovakia has the world's highest car density per capita. Industrial EDI rests on OFTP2 over the ENX network, VDA (Germany), Odette / GALIA messages, and a dense local supplier chain (~350 Tier 1s) managed in JIT/JIS mode.

Landscape — 4 OEMs, ~1M vehicles

Slovakia produces around 1.1 million vehicles per year (ZAP SR 2024 figure) — more than France or Italy in absolute terms, while its population is 12 times smaller. This EU-unique density has structured a deep supplier base and a mature EDI ecosystem, dominated by German standards (VDA) due to the weight of Volkswagen and the presence of Schaeffler, Continental, ZF, Bosch, Brose.

The 4 Slovak OEMs

OEMSiteProduction / year2026 modelsEDI standards
Volkswagen SlovakiaBratislava-Devínska Nová Ves~400,000VW Touareg, Audi Q7 / Q8, Porsche Cayenne, Škoda Karoq (rumoured)VDA 4905/4915, EDIFACT D.97A, OFTP2 / ENX
Kia SlovakiaŽilina-Teplička~350,000Kia Sportage, Kia Ceed, Hyundai Tucson (group sharing)EDIFACT D.96A / D.97A, KAMA Korean spec, OFTP2 / ENX
Stellantis SlovakiaTrnava~300,000Citroën C3, Citroën C3 Aircross, Peugeot 208, Opel Frontera (since 2024)GALIA / Odette, EDIFACT D.96A, OFTP2 / ENX
Jaguar Land Rover SlovakiaNitra~150,000Land Rover Defender, Land Rover DiscoveryJLR VDA-aligned, EDIFACT D.97A, OFTP2 / ENX

EDI messages used

Slovak automotive EDI flows typically chain:

  • VDA 4905 / 4915 — long-term and sequenced call-offs. Dominant German standard at VW, reused by JLR.
  • DELFOR (EDIFACT D.97A) — delivery forecast, weekly / monthly call-off windows.
  • DELJIT (EDIFACT D.97A) — Just-in-Time delivery, per sequenced vehicle for nearby Tier 1s (typically < 50 km from the OEM site).
  • DESADV — dispatch advice with packing list by container / pallet / sequenced module.
  • INVOIC — invoice (EDIFACT D.96A or D.97A, with a progressive migration to PEPPOL BIS 3.0 for EU financial flows).
  • REMADV — remittance advice, closes the payment chain.
  • GALIA / Odette spec — for the Stellantis account, legacy from PSA.
  • KAMA Korean spec — for Kia Slovakia, complementing EDIFACT standards (notably for quality reports back to Seoul).
text delfor-vw-slovakia.edi 
UNA:+.? '
UNB+UNOC:3+VW-SLOVAKIA-BRATISLAVA:14+SUPPLIER01-SK:14+260615:0810+SK-VW-260615-001'
UNH+1+DELFOR:D:97A:UN:VDA00'
BGM+241+DELFOR-VW-2026-260615+9'
DTM+137:202606150810:203'
DTM+2:202607012359:203'
NAD+BY+VW-BRATISLAVA:::VOLKSWAGEN SLOVAKIA AS'
NAD+SU+SK20123456:::SUPPLIER s.r.o.'
LIN+1++4B0853671A:IN'
DTM+10:20260701:102'
QTY+113:240:PCE'
DTM+10:20260702:102'
QTY+113:240:PCE'
DTM+10:20260703:102'
QTY+113:480:PCE'
UNS+S'
UNT+14+1'
UNZ+1+SK-VW-260615-001'

Transport — OFTP2 / ENX / AS2

The ENX (European Network Exchange) network, operated by the ENX Association (Frankfurt), is the dominant rail for Slovak automotive EDI flows. OFTP2 (Odette File Transfer Protocol v2) is its standard protocol, with:

  • VW Bratislava connected via ENX to the Wolfsburg HQ and to German Tier 1s (Bosch, Continental, Schaeffler, ZF, Brose).
  • JLR Nitra via ENX to Coventry (UK) HQ, with a locally hosted OFTP2 hub.
  • Stellantis Trnava via ENX to Carrières-sous-Poissy (FR) and Rüsselsheim (DE — Opel).
  • Kia Žilina has its own infrastructure tied to Hyundai Motor Group, sometimes AS2 bridges rather than ENX.
  • AS2 — used for Tier 2s and certain non-auto sectors (construction, consumer electronics).

Adoption — JIT/JIS and supplier chain

  • ~350 automotive Tier 1s installed in Slovakia (ZAP SR 2024 figure), mostly German (~60%), Korean (~15%), Italian / French (~10%), Slovak / Czech (~15%).
  • JIT (Just-in-Time) — most Tier 1s located < 50 km from the OEM site operate sequenced deliveries triggered by DELJIT every 15-60 minutes.
  • JIS (Just-in-Sequence) — for seats (Faurecia / Adient), dashboards, interior lines: deliveries in exact assembly-sequence order.
  • Cross-border: huge Slovakia ↔ Germany flows (VW Bratislava ↔ Wolfsburg), Slovakia ↔ France (Stellantis Trnava ↔ Carrières), Slovakia ↔ Korea (Kia Žilina ↔ Seoul).

Common pitfalls

  • Mixing VDA and GALIA. VW conventions (VDA 4905/4915) differ from Stellantis conventions (GALIA / Odette). A Tier 1 supplying both must maintain two variants: no way to push a VDA call-off to Trnava or a GALIA to Bratislava.
  • Underestimating OFTP2 latency. OFTP2 guarantees delivery but not receiver-side processing time. A DELJIT delivered in 5 seconds may take 30 seconds to be consumed by the Tier 1 ERP — critical when the sequence window is 15 min.
  • Confusing IČO with OEM supplier code. Each OEM has its own internal supplier code (different from the Slovak IČO). NAD must carry the OEM code, not the SK legal code.
  • Believing ENX = every Tier 2. ENX mainly covers directly-connected Tier 1s. Many Tier 2 / 3s use AS2 via OpenText / Comarch and go through a relay Tier 1.
  • Forgetting separate invoicing. The EDIFACT INVOIC is often issued separately from call-offs, on a monthly grouped cycle by slip. For EU flows, gradual move to PEPPOL BIS 3.0.