BR-CO-09: VAT identifier missing country prefix

Was das bedeutet

The Seller VAT identifier (BT-31), Seller tax representative VAT identifier (BT-63), or Buyer VAT identifier (BT-48) does not start with a valid ISO 3166-1 alpha-2 country prefix (Greece may use 'EL').

Häufigste Ursache

The two-letter country code was stripped from the VAT identifier, e.g. 'DE123456789' became '123456789'.

So beheben Sie es

Restore the ISO country prefix on the VAT identifier at the source. Not auto-repaired: this touches a party identity (CLAUDE.md invariant).

Verwandte Fehlercodes

• BR-CO-10 — Line net amount sum mismatch
• BR-CO-13 — Total amount without VAT mismatch
• BR-CO-15 — Total amount with VAT mismatch