— Standards
EDI and financial standards covered
Sixteen standards that concentrate the bulk of worldwide B2B and financial messaging traffic. Nine define the structure of EDI messages — EDIFACT, X12, cXML, OCI, UBL/PEPPOL, RosettaNet, OAGIS, TRADACOMS, Factur-X. Three — AS2, AS4, OFTP2 — govern their secure transport over the internet, across European automotive, and through the PEPPOL network. Two — HL7 v2.x, FHIR R5 — cover the healthcare ecosystem. And two — SWIFT MT, ISO 20022 — address interbank financial messaging. Each card states the year of creation, the official maintainer and the scope of usage in 2026.
Document standards
These standards define the structure, syntax and semantics of the messages exchanged (purchase orders, invoices, despatch advices).
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Standard · 1987
EDIFACT
The dominant EDI standard outside North America. Segment-based syntax, two directories a year.
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Standard · 1979
ANSI ASC X12
The North-American EDI standard. Three-digit transactions (850, 856, 810), semi-annual releases.
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Standard · 1999
cXML
XML-based EDI for e-procurement: punchout, purchase order, invoice. Backbone of B2B marketplaces.
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Standard · 2000
SAP OCI
Open Catalog Interface: the SAP punchout protocol that opens a supplier catalog inside SRM/Ariba.
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Standard · 2004
UBL
The universal XML library of business documents (ISO/IEC 19845). The foundation of PEPPOL, EN 16931 and national CTC systems.
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Standard · 2008
PEPPOL
The European four-corner network. BIS Billing 3.0 on UBL, AS4 transport, 2026 e-invoicing mandates.
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Standard · 1987
EANCOM
The GS1 subset of EDIFACT for retail. ORDERS/DESADV/INVOIC messages, GS1 identifiers (GLN, GTIN, SSCC).
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Standard · 2001
GS1 XML
The XML syntax of GS1 eCom: Order/DespatchAdvice/Invoice in XML, GS1 keys, the SBDH envelope, and the format of GDSN (product-data sync).
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Standard · 1993
SAP IDoc
SAP's internal exchange format: control/data/status records, ORDERS05/INVOIC02 types, converted to EDIFACT/X12 by the EDI subsystem.
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Standard · 1978
VDA
German automotive EDI: fixed-length messages (4905 Lieferabruf, 4915 Feinabruf, 4913, 4906), OFTP2 transport, EDIFACT migration.
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Standard · 1984
Odette
European automotive EDI: DELINS/CALDEL/AVIEXP messages (EDIFACT subsets) and the OFTP / OFTP2 transport protocol. GALIA in France.
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Standard · 1998
RosettaNet
Choreographed XML EDI for the semiconductor and high-tech supply chain. PIPs on top of RNIF, HTTPS or AS2 transport.
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Standard · 1994
OAGi (OAGIS)
Business Object Documents in canonical XML (ProcessPurchaseOrder, SyncCustomerParty). De-facto standard for the canonical ERP integration model.
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Standard · 1982
TRADACOMS
First nationwide EDI standard, direct ancestor of EDIFACT. Still dominant in 2026 across legacy UK retail traffic.
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Standard · 2014
Factur-X / ZUGFeRD
Franco-German hybrid invoice: readable PDF/A-3 + embedded CII XML compliant with EN 16931. Primary landing format for the French and German e-invoicing reforms.
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Standard · 2017
EN 16931
The European semantic invoice standard: business terms (BT/BG), rules (BR-*), two syntaxes (CII/UBL). The core of Factur-X, XRechnung, PEPPOL BIS, Facturae, EHF…
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Standard · 2010s
CII
Cross Industry Invoice: one of the two XML syntaxes of EN 16931 (with UBL), the basis of Factur-X / ZUGFeRD and of XRechnung. SCRDM model, rsm/ram/udt namespaces.
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Standard · 2017
XRechnung
The German CIUS of EN 16931: the mandatory B2G format, realisable in CII or UBL, addressed by the Leitweg-ID and validated by BR-DE rules.
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Standard · 2014
FatturaPA
The Italian national XML format, routed exclusively through the SdI. A clearance (CTC) model mandatory for B2G, B2B and B2C since 2019.
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Standard · 2007
Facturae
The Spanish national XML format, XAdES-signed and routed for B2G via FACe. Extended to B2B by the Crea y Crece law.
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Standard · 2005
OIOUBL
Denmark’s customisation of UBL 2.0, mandatory B2G since 2005 via NemHandel. OIOUBL 3 converges towards PEPPOL BIS / EN 16931.
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Standard · 2012
EHF
The Norwegian UBL-based format. EHF Billing 3.0 is aligned with PEPPOL BIS Billing 3.0 (EN 16931), carried over PEPPOL / ELMA.
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Standard · 2003
Finvoice
The Finnish national XML format, carried by the operator banks. Finvoice 3.0 is aligned with EN 16931; also covers B2C.
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Standard · 2005
SAF-T
The standard tax audit file (XML): general ledger, parties, invoices and payments exported to the tax authority. Implemented as SAF-T PT/NO, JPK (PL), i.SAF (LT), FAIA (LU)…
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Standard · 2011
CFDI
The Mexican e-invoice: XML signed with the issuer's CSD, stamped by a PAC which affixes the UUID. Version 4.0, Pagos and Carta Porte complementos. Pioneering clearance.
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Standard · 2006
NF-e
The Brazilian e-invoice: signed XML (ICP-Brasil) authorised by SEFAZ BEFORE goods circulate. 44-digit chave de acesso, DANFE, the CT-e/MDF-e/NFS-e family.
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Standard · 2003
DTE
The world pioneer of e-invoicing: signed XML, folios pre-authorised via CAF, PDF417 stamp, types 33/34/39/52/56/61. VAT pre-filling since 2017.
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Standard · 2007
EPCIS
GS1 traceability events: what/when/where/why, Object/Aggregation/Transformation events, the CBV vocabulary. The backbone of the DSCSA, FMD and FSMA 204 mandates.
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Standard · 1987
PIDX
Oil & gas e-business: OrderCreate, the field-approved Field Ticket, Invoice, PriceSheet — the procure-to-pay of oilfield services.
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Standard · 2000
CIDX
The chemical industry Chem eStandards: orders, ShipNotice and invoices with hazardous materials, batches and VMI. Maintained by OAGi since 2008.
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Standard · 2000
papiNet
The XML of the paper, pulp and wood industry: individually identified reels, grammage, weight tolerances, VMI. PurchaseOrder → DeliveryMessage → InvoiceMessage.
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Standard · 1986
EDIFICE
The B2B forum of European electronics: sector EDIFACT profiles (as EANCOM does for retail) and the European relay of RosettaNet.
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Standard · 1970s
Spec 2000
Aviation e-business: spare parts, repair orders, AOG, reliability data between airlines, OEMs and MROs. Process-based chapters.
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Transport protocols
These protocols wrap and route the encrypted messages between trading partners.
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Transport · 2002
AS2
AS2 transports any EDI payload over encrypted, signed HTTPS, with an MDN acknowledgment.
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Transport · 2013
AS4
SOAP successor to AS2, ebMS 3.0 profile with WS-Security and P-Mode. Mandatory transport of the PEPPOL eDelivery network since 2020.
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Transport · 2007
OFTP2
European automotive protocol over TCP/IP with TLS, X.509 certificates, CMS encryption/signing, and signed receipts (EERP).
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Healthcare — HL7
Healthcare interoperability has its own family of standards, maintained by HL7 International since 1989. v2.x remains the backbone of HIS systems; FHIR R5 powers patient APIs and third-party apps.
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Healthcare · 1996
HIPAA
US healthcare EDI imposed by law: X12N 005010 transactions (837 claims, 835 payments, 270/271 eligibility, 278 prior auth), TR3 guides, clearinghouses.
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Healthcare · 1989
HL7 v2.x
The dominant clinical data exchange standard. Pipe-delimited syntax (MSH/PID/PV1...), v2.3.1 through v2.8.2.
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Healthcare · 2023
HL7 FHIR R5
HL7's modern REST/JSON layer. Atomic resources (Patient, Observation, Bundle...), standard API, SMART on FHIR.
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Financial messaging
Interbank messaging has its own family of standards, distinct from commercial EDI. SWIFT MT for legacy flows; ISO 20022 for the modernisation driven by CBPR+ (cross-border), T2/T2S, CHIPS, Fedwire and CHAPS.
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Finance · 1977
SWIFT MT
Legacy family of FIN financial messages (MT103, MT940, MT700). Retired for SWIFTNet cross-border on 22 November 2025; still active in domestic and trade finance.
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Finance · 2004
ISO 20022
Universal XML standard for financial messaging. pain, pacs, camt. Mandatory for SWIFT cross-border since November 2025 (CBPR+).
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