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Documentation overview
Glossary
E
EN 16931
E-reporting
C
CIUS
CII
Code list
Credit note
Contract reference
X
XRechnung
XML Schema (XSD)
XML
Z
ZUGFeRD
F
Factur-X
U
UBL
Unit code
P
PEPPOL
PEPPOL BIS
Participant ID
PDF/A-3
Payment means
Purchase order (PO)
A
Access Point
Allowance / charge
S
SMP
SML
L
Leitweg-ID
K
KoSIT
V
Validation
VAT ID
ViDA
B
Business Term (BT)
Business Group (BG)
BIC
R
Reverse charge
Real-time reporting
T
Tax category
I
IBAN
Invoice type code
Invoice line item
D
Document reference
Q
QR code payment
Code Lists
XRechnung Fields
ZUGFeRD Profiles
  3. E-Invoicing Resources
  5. Glossary
  7. XML

Reference

XML

Text-based markup format used to represent structured data in many e-invoice syntaxes.

Explanation#

UBL and CII are XML-based invoice syntaxes.

XML must be well-formed and conform to schemas/business rules.

This article treats XML as a practical reference, not just a navigation page. It explains the term or workflow in context, shows why it matters for European e-invoicing, and connects the topic to invoice creation, validation, routing, archiving, and ERP implementation decisions.

Related resources#

Related resources connects XML with the next useful reference pages and tools. These links are included to support a complete workflow, from understanding Convert invoices to validating or converting the invoice file.

Convert invoices

Related terms#

Related terms connects XML with the next useful reference pages and tools. These links are included to support a complete workflow, from understanding XML Schema (XSD), Validation and UBL to validating or converting the invoice file.

XML Schema (XSD)

A formal definition of allowed XML structure and data types.

Validation

Process of checking an e-invoice against syntax rules and business rules.

UBL

Universal Business Language: an XML library for standard business documents.

CII

UN/CEFACT Cross Industry Invoice: an XML syntax used for e-invoices.

XML Schema (XSD)PDF/A-3
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ExplanationRelated resourcesRelated terms

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