UBL-SR-10
EN 16931-1 layer: en16931
Checked against Peppol BIS Billing 3.0 2026.5
What does UBL-SR-10 mean? Seller trader name shall occur maximum once
Why did my invoice fail UBL-SR-10?
The Seller trading name (BT-28), the name the seller commonly trades under if different from the legal name, may occur at most once. In UBL this maps to cac:AccountingSupplierParty/cac:Party/cac:PartyName/cbc:Name, which must not repeat.
Official rule text
Seller trader name shall occur maximum once
Common causes
- Several cac:PartyName elements are emitted (e.g. one per brand or division).
- Trading name is duplicated from both a DBA field and a marketing name.
- Template outputs the trading name inside a loop over party aliases.
How do I fix it?
Provide a single trading name: <cac:PartyName><cbc:Name>ACME</cbc:Name></cac:PartyName> and delete any additional cac:PartyName elements under the supplier party.
Related rules
UBL-SR-01 · UBL-SR-02 · UBL-SR-03 · UBL-SR-04 · UBL-SR-05 · UBL-SR-06 · UBL-SR-07 · UBL-SR-08
Check your invoice against this rule
Paste it into the live demo, or call POST /v1/validate. See the quickstart.