BR-DE-17

The invoice type code (BT-3) should be one of the permitted UNTDID 1001 codes: 326, 380, 384, 389, 381, 875, 876 or 877.

Severity: Warning
Applies to: CII, UBL
Rule set: v2026-01-31

Official rule text

Mit dem Element "Invoice type code" (BT-3) sollen ausschließlich folgende Codes aus der Codeliste UNTDID 1001 übermittelt werden: 326 (Partial invoice), 380 (Commercial invoice), 384 (Corrected invoice), 389 (Self-billed invoice) und 381 (Credit note),875 (Partial construction invoice), 876 (Partial final construction invoice), 877 (Final construction invoice).

Why it happens

Most systems default to 380 (commercial invoice), which is correct. Deviations usually appear on credit notes or construction-industry partial invoices where a custom code was set.

How to fix it

Map your internal document type onto one of the permitted codes — 380 for a normal invoice, 381 for a credit note, 326 for a partial invoice.

NormAPI provides technical validation, not tax or legal advice.