Error codes · XRechnung · Germany
BR-DE-21In your invoicing software
Invalid XRechnung Specification Identifier
This is the rejection, word for word: „[BR-DE-21] The Specification Identifier (BT-24 CustomizationID) must follow the XRechnung URN format: urn:cen.eu:en16931:2017#compliant#urn:xeinkauf.de:kosit:xrechnung_X.X“
XPath: /Invoice/cbc:CustomizationID | URN pattern: urn:cen.eu:en16931:2017#compliant#urn:xeinkauf.de:kosit:xrechnung_\\d+\\.\\d+
What to have readyNothing. The file has to be re-exported from your invoicing software; we check it again afterwards.
What we doCorrect the CustomizationID to use valid XRechnung URN format.
If you enter it yourself in your invoicing software
Before
<Invoice> <cbc:BuyerReference><!-- invalid or missing value --></cbc:BuyerReference> </Invoice>
After
<Invoice> <cbc:BuyerReference>correct-value</cbc:BuyerReference> </Invoice>
Element order is part of the rule: if the element sits in the wrong place, the validator rejects with BR-DE-21.
What the finding looks likeExample
FindingStructure invalid · BR-DE-21
Location//cac:PaymentMeans/cac:PayeeFinancialAccount/cbc:ID
From youA re-exported file
ThenRe-export
ProofSHA-256 and /verify link after the check