BR-07
A rule of the European standard EN 16931 – applies to every invoice following the standard, including Peppol BIS Billing 3.0.
What this error means
BR-07
The buyer name is missing (BT-44).
How to fix it
Fill in the buyer's registered name: cac:AccountingCustomerParty → cac:PartyLegalEntity → cbc:RegistrationName.