eRechioError codes › BR-DE-21 · Deutsch
BR-DE-21: Specification identifier does not match XRechnung
A rule from XRechnung, the German national specification (CIUS) of EN 16931. What the message means and how to fix it.
What the message means
The specification identifier (BT-24) tells the receiver which standard the invoice follows. For XRechnung 3.0 it is: urn:cen.eu:en16931:2017#compliant#urn:xeinkauf.de:kosit:xrechnung_3.0
How to fix it
Use exactly this identifier, without spaces at the start or end. If you do not want to send an XRechnung, use the identifier of your format instead (for example urn:cen.eu:en16931:2017 for plain EN 16931).
Where the field is in the file
- UBL:
cbc:CustomizationID - CII:
rsm:ExchangedDocumentContext/ram:GuidelineSpecifiedDocumentContextParameter/ram:ID
The rule applies only to invoices that declare XRechnung in the specification identifier (BT-24), for example invoices to German public authorities. For Peppol BIS, ZUGFeRD or a plain EN 16931 invoice it does not apply. The original rule text in the KoSIT files is German.
Check the invoice again: The free validator runs the official KoSIT rule files (EN 16931 rules for UBL and CII, plus the German XRechnung rules) in your browser. Your invoice never leaves your computer, and the report links to the English explanations.
Technical notes on the data format, not tax or legal advice. Whether VAT rate, supply and amounts are correct in substance is a question for your tax adviser.