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BR-DE-5 - Mandatory: seller contact point (BT-41)

XRechnung requires the element BT-41 (seller contact point) to be present.

BR-DE-5 - Mandatory: seller contact point (BT-41)

XRechnung requires the element BT-41 (seller contact point) to be present. This is an XRechnung rule (German KoSIT CIUS). It applies on top of EN 16931 and Peppol, and is mandatory for B2G invoicing in Germany.

Mandatory fieldsXRechnungBT-41 Error
This is an XRechnung rule (German KoSIT CIUS). It applies on top of EN 16931 and Peppol, and is mandatory for B2G invoicing in Germany.

What this rule checks

XRechnung requires the element BT-41 (seller contact point) to be present.

How to fix it

Add the element BT-41 (seller contact point) to the invoice.

Validate against this rule

This rule is part of EN 16931. Check your invoice with the validator that matches your format:

Related rules

Source: KoSIT XRechnung · Last verified: 2026-07-10

All validation rules