# UBL-CR-470

Source: https://xmlvalid.com/rules/UBL-CR-470

> A UBL invoice should not include the PrepaidPayment

- Level: warning
- 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: `/ubl:Invoice | /cn:CreditNote`
- Test: `not(cac:PrepaidPayment)`

## Why it fails

- The invoice includes `cac:PrepaidPayment`, which EN 16931 does not carry.

## How to fix it

- Give the amount already paid as `cac:LegalMonetaryTotal/cbc:PrepaidAmount` (BT-113) and leave `cac:PrepaidPayment` out.

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