Skip to main content
Invoice-Converter.comInvoice-Converter
BlogPricing
Convert InvoiceConvert
ConvertConvert Invoice
⌘K
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
  1. E-Invoicing Resources
  2. Glossary
  3. UBL

Reference

UBL

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

Explanation#

Used by PEPPOL BIS and many national e-invoicing implementations.

Invoice documents are typically based on UBL Invoice / CreditNote.

This article treats UBL 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 UBL with the next useful reference pages and tools. These links are included to support a complete workflow, from understanding UBL guide to validating or converting the invoice file.

UBL guide

Related terms#

Related terms connects UBL with the next useful reference pages and tools. These links are included to support a complete workflow, from understanding PEPPOL BIS, CII and XML to validating or converting the invoice file.

PEPPOL BIS

Business Interoperability Specifications defining document rules (commonly BIS 3.0 for invoices).

CII

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

XML

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

XML Schema (XSD)

A formal definition of allowed XML structure and data types.

Factur-XCII
On this page
ExplanationRelated resourcesRelated terms

Invoice-Converter.com

Empowering businesses across Europe to effortlessly comply with XRechnung regulations. Join hundreds who've automated their invoice conversion process.

Start Converting

Features

Convert PDFs & create

  • PDF to XRechnung
  • PDF to UBL
  • PDF to XRechnung (CII)
  • PDF to ZUGFeRD
  • PDF to Factur-X
  • Create XRechnung
  • XRechnung to PDF

View & validate

  • XRechnung/XML Viewer
  • XRechnung Validator

Quick Links

  • Resources
  • Trust & Security Center
  • Developer API Documentation
  • Blog
  • About
  • Pricing
  • Free trial
  • Climate Contribution

Legal

  • Imprint
  • Privacy Policy
  • Data Processing Agreement
  • Terms & Conditions
  • Money-Back Guarantee

Get in Touch

contact@invoice-converter.com
© 2026 Invoice-Converter.com.Made with in Europe
GDPR Compliant
German Server