# ibr-105

Source: https://xmlvalid.com/rules/ibr-105

> The Payee identifier (ibt-060) MUST occur maximum once in the Invoice, if the Payee (ibg-10) is different from the Seller (ibg-04).

- Level: error
- Rule sets: PINT Billing rules 1.1.3, PINT Billing rules (as shipped with PINT AE) 1.0.4
- Context: `cac:PayeeParty`
- Test: `(count(cac:PartyIdentification/cbc:ID[upper-case(@schemeID) != 'SEPA']) <= 1) or ((cac:PartyName/cbc:Name) = (../cac:AccountingSupplierParty/cac:Party/cac:PartyLegalEntity/cbc:RegistrationName))`

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