What it means
When a company's legal registration identifier, such as its trade register number, says which register it comes from, that scheme must be a four-digit code from the ISO 6523 ICD list, for example 0088 for a GLN, 0060 for a DUNS number, 0106 for a Dutch KvK number or 0009 for a French SIRET.
Why it matters
Codes are read by software, not by people. A value outside the agreed code list cannot be interpreted, so the recipient's system rejects the invoice even when the value looks sensible to a person.
How to fix it
Use the four-digit code of the register the company is in, or leave the scheme out. If you build the XML yourself, it is the schemeID of cac:PartyLegalEntity/cbc:CompanyID (UBL) or of ram:SpecifiedLegalOrganization/ram:ID (CII).
The rule as published
Any registration identifier identification scheme identifier MUST be coded using one of the ISO 6523 ICD list. Where this rule applies
| Rule set | Version |
|---|---|
| EN 16931 (UBL) | 1.3.17 |
| EN 16931 (UBL credit note) | 1.3.17 |
| EN 16931 (CII) | 1.3.17 |
| XRechnung 3.0 (UBL) | 3.0.2 |
| XRechnung 3.0 (UBL credit note) | 3.0.2 |
| XRechnung 3.0 (CII) | 3.0.2 |
| Peppol BIS Billing 3.0 (invoice) | 2026.5 |
| Peppol BIS Billing 3.0 (credit note) | 2026.5 |
| SI-UBL 2.0 / NLCIUS (invoice) | 2.0.3.13 |
| SI-UBL 2.0 / NLCIUS (credit note) | 2.0.3.13 |
| NLCIUS (CII) | 1.0.3.13 |
| France CTC (UBL invoice) | 1.4.0-04 |
| France CTC (UBL credit note) | 1.4.0-04 |
| France CTC (CII) | 1.4.0-04 |
| CIUS-RO UBL Invoice 1.0.9 | 1.0.9 |
| CIUS-RO UBL Credit Note 1.0.9 | 1.0.9 |
Check your file
Drop your e-invoice to see whether BR-CL-11 still fails, and which other rules do.
Related rules
- BR-CL-13 The item classification scheme must come from UNTDID 7143
- BR-CL-14 Address country codes must be valid ISO 3166-1 codes
- BR-CL-15 The item's country of origin must be a valid ISO 3166-1 code
- BR-CL-16 The payment means code must come from UNTDID 4461
- BR-CL-17 VAT categories of the breakdown, discounts and charges must come from UNCL 5305
- BR-CL-18 VAT categories of invoice lines must come from UNCL 5305