{
  "id": "BR-18",
  "country": "EU",
  "syntax": "ubl",
  "group": "document",
  "severity": "fatal",
  "severity_note": "fatal, from the Flag column of the Peppol BIS Billing 3.0 UBL rules index retrieved 2026-10-18.",
  "spec": "Peppol BIS Billing 3.0, May 2026 release, EN 16931 model bound to UBL",
  "statement": "The Seller tax representative name (BT-62) shall be provided in the Invoice, if the Seller (BG-4) has a Seller tax representative party (BG-11)",
  "statement_lang": "en",
  "context": "cac:TaxRepresentativeParty",
  "test": "normalize-space(cac:PartyName/cbc:Name) != ''",
  "meaning": "The seller tax representative name (BT-62) must be provided if the seller (BG-4) has a seller tax representative party (BG-11). The official message has no trailing period. The context is the tax representative party. The published test checks that the party name is not blank. The comparison is != '' with a space.",
  "fix": "Fill the tax representative party name (BT-62). The published test checks that the name is not blank.",
  "example_fail": "The tax representative party has no name, or that name is blank.",
  "example_pass": "The tax representative party name contains a non-empty value.",
  "example_note": "Illustration of the condition in the official statement. Not an example published by the source.",
  "source_url": "https://docs.peppol.eu/poacc/billing/3.0/rules/ubl-tc434/BR-18/",
  "source_retrieved": "2026-10-18",
  "last_verified": "2026-10-18"
}