# BR-CIUS-PT-43

Source: https://xmlvalid.com/rules/BR-CIUS-PT-43

> The Payee legal registration identifier (BT-61) shall be filled.

- Level: error
- Rule sets: CIUS-PT rules (Portugal, UBL) 2.1.1
- Context: `cac:PayeeParty`
- Test: `exists(cac:PartyLegalEntity) and not(cac:PartyLegalEntity/cbc:CompanyID)`

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