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Warning

UBL-CR-208: The buyer should not have an industry classification code

In short

Warning: worth checking.

UBL-CR-208 means the buyer's party details in your UBL file contain an industry classification code (IndustryClassificationCode), which EN 16931 has no field for. This is a warning. Remove cbc:IndustryClassificationCode from cac:AccountingCustomerParty/cac:Party.

On this page

What it means

The rule warns if cac:AccountingCustomerParty/cac:Party in a UBL invoice or credit note contains cbc:IndustryClassificationCode. In UBL this is a code for the buyer's line of business, such as an industry or activity code. EN 16931 has no business term for it.

Why it matters

An industry classification code describes a line of business rather than identifying an individual buyer. EN 16931 does not use this field in the buyer's party details.

How to fix it

Delete cbc:IndustryClassificationCode from cac:AccountingCustomerParty/cac:Party. If you need to identify the buyer, use the buyer identifier (BT-46), or the company registration number (BT-47) for a legal registration number. Do not move an industry code into either field merely to avoid this warning. Export again and recheck the file.

Once the file is corrected, check it again for free: Validate an invoice against EN 16931

Or fix the invoice in a form and download the corrected file, for 1 credit: Fix a rejected e-invoice

The rule as published

A UBL invoice should not include the AccountingCustomerParty Party IndustryClassificationCode

Where this rule applies

Rule set Version
EN 16931 (UBL) 1.3.17
EN 16931 (UBL credit note) 1.3.17
XRechnung 3.0 (UBL) 3.0.2
XRechnung 3.0 (UBL credit note) 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
France CTC (UBL invoice) 1.4.0-04
France CTC (UBL credit note) 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
Rule text from phive-rules 4.6.4.

Check your file

Drop your e-invoice to see whether UBL-CR-208 still fails, and which other rules do.

Updated 6 November 2026