# BR-09 — Seller country missing

> https://billhorse.com/en/rules/br-09/

## What does this error mean?

The seller address requires a country code (BT-40, ISO 3166-1).

## How to fix it

UBL: PostalAddress/Country/IdentificationCode (e.g. DE). CII: ram:CountryID in PostalTradeAddress.