BR-CO-26
In order for the buyer to automatically identify a supplier, the Seller identifier (BT-29), the Seller legal registration identifier (BT-30) and/or the Seller VAT identifier (BT-31) shall be present.
What does this rule mean?
The seller is not uniquely identifiable: seller identifier (BT-29), legal registration (BT-30) and VAT identifier (BT-31) are all missing.
The buyer must be able to identify the supplier automatically — that needs at least one of these identifiers.
- BT-29
- Seller identifier
- BT-30
- Seller legal registration identifier
- BT-31
- Seller VAT identifier
Official rule message (standard)
In order for the buyer to automatically identify a supplier, the Seller identifier (BT-29), the Seller legal registration identifier (BT-30) and/or the Seller VAT identifier (BT-31) shall be present.
Where the rule applies
Syntax: CII · UBL
The same rule, expressed twice: UBL and CII name the same fields with different paths. Running a CII file against the UBL rules is why you get errors that mean nothing.
UBL
cac:AccountingSupplierParty
CII
//ram:SellerTradeParty
Technical test
The rule passes when this Schematron expression holds true:
(ram:ID) or (ram:GlobalID) or (ram:SpecifiedLegalOrganization/ram:ID) or (ram:SpecifiedTaxRegistration/ram:ID[@schemeID='VA'])How to fix it
Touches amounts, VAT or IBAN. We never change these automatically — correct them in your source data.
Add at least one: a VAT identifier, a legal registration number, or another seller identifier.
Correct the affected entry in your XML, then re-check the invoice. Validation runs locally in your browser — your file never leaves your machine.
Check an e-invoice here
Drop an XML or ZUGFeRD PDF file here. Validation runs locally in your browser against EN 16931 — your file never leaves your machine.