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BR-02 · XRechnung · EN16931 · UBL · CII

XRechnung: invoice number is missing

The business identifier of the invoice is missing.

XRechnung 3.x, EN16931Last professional review: 2026-07-05

Meaning

The business identifier of the invoice is missing.

Typical cause

BT-1 was not extracted or was omitted during UBL/CII mapping.

Affected fields / XML paths

/ubl:Invoice/cbc:ID/rsm:CrossIndustryInvoice/.../ram:ID

Invalid example

<ubl:Invoice><cbc:IssueDate>2026-07-05</cbc:IssueDate></ubl:Invoice>

Corrected example

<ubl:Invoice><cbc:ID>RE-2026-0042</cbc:ID><cbc:IssueDate>2026-07-05</cbc:IssueDate></ubl:Invoice>

Remediation steps

  1. Check the original document.
  2. Populate BT-1 unambiguously.
  3. Run the XRechnung ruleset again.