BR-CO-26
Validation message
Explanation
So the buyer can identify the seller automatically, at least one of the following identifiers must be provided: seller identifier (BT-29), legal registration identifier (BT-30), or VAT identifier (BT-31).
How to fix
Add at least one seller identifier — ideally a VAT ID or commercial register number.
Applies to
- EN 16931 (UBL)
- EN 16931 (CII)