Reference
Markdown exportBR-02 Invoice number is required
An invoice shall have an Invoice number (BT-1) that uniquely identifies the document for the issuer.
Problem Description
An invoice shall have an Invoice number (BT-1) that uniquely identifies the document for the issuer.
ERROR
XRechnung 3.0
Context and Significance
This is a core EN16931 rule; the invoice number is the primary reference for reconciliation, payment matching and audit, so it is mandatory.
Solution
Populate cbc:ID with the sequential invoice number used in your accounting system; it must not be empty.
Quick actions
Valid Examples
Use these points as the practical checks for this section.
- BT-1 = RE-2024-0001 — a non-empty unique document number
Invalid Examples
Use these points as the practical checks for this section.
- cbc:ID is absent, or present as an empty <cbc:ID></cbc:ID> element
Code Examples
Valid XML
<cbc:ID>RE-2024-0001</cbc:ID>
<cbc:IssueDate>2024-05-01</cbc:IssueDate>Invalid XML
<cbc:CustomizationID>urn:cen.eu:en16931:2017</cbc:CustomizationID>
<cbc:IssueDate>2024-05-01</cbc:IssueDate>