Skip to content

BR-06: Seller name (BT-27) is missing

Official message

[BR-06] An Invoice shall contain the Seller name (BT-27).

EN 16931 (CII) · Error · Message language: English · Version: xrechnung-3.0.2-validator-configuration-2026-08-31

[BR-06] An Invoice shall contain the Seller name (BT-27).

EN 16931 (UBL) · Error · Message language: English · Version: xrechnung-3.0.2-validator-configuration-2026-08-31

[BR-06] An Invoice shall contain the Seller name (BT-27).

Factur-X / ZUGFeRD EN 16931 · Error · Message language: English · Version: Factur-X 1.08 / ZUGFeRD 2.4
Severity
Error The invoice is invalid and may be rejected by the recipient.
Applies to
EN 16931 (CII), EN 16931 (UBL), Factur-X / ZUGFeRD EN 16931
Affected fields
BT-27

What does this mean?

Every invoice must contain the seller name (BT-27), the full name under which the seller is legally registered. The element is missing or contains only spaces.

Typical causes

The seller name was not entered.
Only a trading name (BT-28) or a contact person was given, but not the name itself.
UBL: The name only appears in cac:PartyName, not in the legal name cac:PartyLegalEntity/cbc:RegistrationName.

How to fix the error

Enter the full seller name.
CII: ram:ApplicableHeaderTradeAgreement/ram:SellerTradeParty/ram:Name, UBL: cac:AccountingSupplierParty/cac:Party/cac:PartyLegalEntity/cbc:RegistrationName.
Generate and validate the invoice again.

In E-Rechnungsfreund

In the invoice form, section "Verkäufer (BG-4)" (seller), fill in the field "Name (BT-27/44)".

Example

Wrong

<ram:SellerTradeParty>
  <ram:PostalTradeAddress>
    ...
  </ram:PostalTradeAddress>
</ram:SellerTradeParty>

Correct

<ram:SellerTradeParty>
  <ram:Name>Example Ltd</ram:Name>
  <ram:PostalTradeAddress>
    ...
  </ram:PostalTradeAddress>
</ram:SellerTradeParty>
For developers: test expression per syntax

EN 16931 (CII) (CII)

Context: /rsm:CrossIndustryInvoice

normalize-space(rsm:SupplyChainTradeTransaction/ram:ApplicableHeaderTradeAgreement/ram:SellerTradeParty/ram:Name) != ''

EN 16931 (UBL) (UBL)

Context: /ubl:Invoice | /cn:CreditNote

normalize-space(cac:AccountingSupplierParty/cac:Party/cac:PartyLegalEntity/cbc:RegistrationName) != ''

Factur-X / ZUGFeRD EN 16931 (CII)

Technical ID in the source: FX-SCH-A-000015

Context: /rsm:CrossIndustryInvoice

(rsm:SupplyChainTradeTransaction/ram:ApplicableHeaderTradeAgreement/ram:SellerTradeParty/ram:Name!='')

Related validation rules

  • BR-01: Specification identifier (BT-24) is missing
  • BR-02: Invoice number (BT-1) is missing
  • BR-03: Invoice issue date (BT-2) is missing
  • BR-04: Invoice type code (BT-3) is missing
  • BR-05: Invoice currency code (BT-5) is missing
  • BR-07: Buyer name (BT-44) is missing

Last updated:
Explanation of the validation rule, not legal or tax advice.