# UBL-SR-19

Source: https://xmlvalid.com/rules/UBL-SR-19

> Payee name shall occur maximum once, if the Payee is different from the Seller

- Level: error
- Rule sets: EN 16931 rules (UBL) 1.3.17, EN 16931 rules 1.3.16 (UBL), EXTENDED-CTC-FR rules (UBL) 1.4.0.04, Romanian RO e-Factura rules (UBL) 1.0.9
- Context: `cac:PayeeParty`
- Test: `(count(cac:PartyName/cbc:Name) <= 1) and ((cac:PartyName/cbc:Name) != (../cac:AccountingSupplierParty/cac:Party/cac:PartyLegalEntity/cbc:RegistrationName))`

Validate a document against these rules: https://xmlvalid.com/validate