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
  3. E-Invoicing Resources
  5. Glossary
  7. Document reference

Reference

Document reference

Link from an invoice to another document (order, contract, prior invoice).

Explanation#

Improves traceability and automation in accounts payable.

Often required in public procurement contexts.

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

XRechnung fields

Related terms#

Related terms connects Document reference with the next useful reference pages and tools. These links are included to support a complete workflow, from understanding Credit note, Purchase order (PO) and Contract reference to validating or converting the invoice file.

Credit note

Document that reduces or cancels a previously issued invoice amount.

Purchase order (PO)

Buyer-issued document ordering goods/services, often referenced by an invoice.

Contract reference

Identifier linking an invoice to a contract or framework agreement.

Credit notePurchase order (PO)
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