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Warning

UBL-CR-580: The seller's item number should not name an issuer

In short

Warning: worth checking.

UBL-CR-580 means the seller's item identification on an invoice or credit note line names the party that issued the number (cac:IssuerParty), which EN 16931 does not use here. It is only a warning. Remove cac:IssuerParty and keep the number.

On this page

What it means

On every invoice or credit note line, the cac:SellersItemIdentification block for the seller's item number (BT-155) should not contain a cac:IssuerParty block. In UBL this is the party that issued the number, with its name and details.

Why it matters

The EN 16931 UBL rules do not use issuer details inside the seller's item identification.

How to fix it

Ask your software supplier to leave cac:IssuerParty out of cac:SellersItemIdentification in the invoice export. If the issuer matters for reading the code, say so in the item description. If you build the XML yourself, delete cac:IssuerParty from cac:SellersItemIdentification on each line.

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 InvoiceLine Item SellersItemIdentification IssuerParty

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-580 still fails, and which other rules do.

Updated 6 November 2026