# BR-CIUS-PT-59

Source: https://xmlvalid.com/rules/BR-CIUS-PT-59

> The Item price discount (BT-147) shall be filled.

- Level: error
- Rule sets: CIUS-PT rules (Portugal, UBL) 2.1.1
- Context: `cac:InvoiceLine/cac:Price | cac:CreditNoteLine/cac:Price`
- Test: `exists(cac:AllowanceCharge[cbc:ChargeIndicator='false']) and not(cac:AllowanceCharge/cbc:Amount)`

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