BR-DE-5

Explanation

XRechnung requires a named contact point on the seller side (BT-41) — meaning your own contact point, the one the buyer reaches out to with questions, not the buyer's. It need not be a specific person; a function such as 'Accounting' is fine. Together with phone and email, this is one of three XRechnung-mandatory fields that traditional VAT law doesn't require — which is why they often feel unfamiliar.

How to fix

Add your own contact point as a name or function, e.g. 'Accounting'. Set it once in your company profile and it carries into every invoice.