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Critical

BR-6

Seller Name Missing (BT-27)

What This Error Means

An invoice must contain the seller name (BT-27). The KoSIT report prints the rule as [BR-06]. In UBL this is cac:AccountingSupplierParty/cac:Party/cac:PartyLegalEntity/cbc:RegistrationName, in CII ram:SellerTradeParty/ram:Name. BT-27 is the full name under which the seller is registered, for example in the commercial register; a trading name belongs in BT-28 (cac:PartyName/cbc:Name). The rule is fatal.

How to Fix It

Add cac:PartyLegalEntity with cbc:RegistrationName to the seller's cac:Party, after cac:PartyTaxScheme and before cac:Contact. Filling only cac:PartyName is not enough in UBL.

XML Example
<cac:PartyLegalEntity>
  <cbc:RegistrationName>Muster Handels GmbH</cbc:RegistrationName>
  <cbc:CompanyID>HRB 123456</cbc:CompanyID>
</cac:PartyLegalEntity>

Fix Automatically

Upload your invoice to our Smart Repair engine. It checks the file against the full KoSIT rule set, including BR-6, and corrects supported fields with a GoBD audit trail.

Open Smart Repair

Related Errors

Other commonly encountered validation errors

BR-DE-2Seller Contact Missing (BG-6)BR-DE-3Seller City Missing (BT-37)BR-DE-1Payment Instructions Missing (BG-16)BR-DE-4Seller Post Code Missing (BT-38)