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Validation & rules

BR-DE rules

BR-DE rules are the additional German business rules of XRechnung that go beyond EN 16931 — among other things they require a seller contact and payment details, and they are the most common reason an invoice is rejected.

Also:
BR-DE · BR-DE-2 · DE-R-Regeln
Reviewed on 2026-08-26.

There is no long-form article for this term yet. The definition above is the complete entry; the related terms lead onwards.