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E-Invoice Validator

BR-DE-15

MistakeUBLCII

What that means

For XRechnung, the buyer reference (BT-10) is mandatory - for public clients, the route ID.

Here's how to fix it

Fill BT-10 with the recipient's route ID (UBL: cbc:BuyerReference, CII: BuyerReference).

Official rules text

[BR-DE-15] Das Element "Buyer reference" (BT-10) muss übermittelt werden.

Rules and regulations

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Official rule sets up to date: EN 16931 1.3.17 · Peppol BIS 3.0.20 · XRechnung 3.0.2 (KoSIT 2.6.0). Last checked against the sources on 12.10.2026.