BR-DE-15
XRechnung (Germany) rules · severity: error · in XRechnung (UBL), XRechnung (CII)
Official rule text
Das Element "Buyer reference" (BT-10) muss übermittelt werden.
What it means
XRechnung requires a buyer reference (BT-10). For German public authorities this is the Leitweg-ID; for businesses any agreed reference (e.g. your PO or customer number) works.
Fields involved
BT-10Buyer reference
How to fix it
Open the invoice in your invoicing software or XML, correct the fields named in the rule, and check the file again. Our free validator shows exactly where in the file the rule failed. If you need a new compliant invoice, you can create one for free.