Structured learning paths that connect theory with the real messages you analyse every day.
7 learning paths26 lessons17 use cases≈ 4 h reading time
Every industry process end to end: the messages involved, the real-world example, the process flow and the associations that publish the binding rulebooks.
Public sector
E-invoice to authorities
Supplier issues an EN 16931 compliant invoice (XRechnung UBL/CII) routed via Peppol or a national portal.
Messages
XRechnung (UBL)XRechnung (CII)Peppol BIS Billing 3.0
Common standards
EN 16931XRechnungZUGFeRD/Factur-XPeppol BIS 3.0
Parties: Supplier ↔ contracting authority
Practice example
A construction firm invoices a federal agency: XRechnung 3.0, Leitweg-ID in BuyerReference, payment terms and VAT breakdown validated against EN 16931 business rules.
Typical process flow
01Invoice creation (UBL/CII)
02Schematron validation
03Peppol or portal transmission
04Message level response
Rule-setting bodies & associations
Koordinierungsstelle für IT-Standards (KoSIT) — Freie Hansestadt Bremen