# BR-23

Quoted from a public specification. This page is not a validator, and it is not tax, legal, or accounting advice.

- Country: EU
- Syntax: UBL
- Severity: fatal
- Statement language: en
- Last verified: 2026-10-18

## Official statement

> An Invoice line (BG-25) shall have an Invoiced quantity unit of measure code (BT-130).

Source: https://docs.peppol.eu/poacc/billing/3.0/rules/ubl-tc434/BR-23/

Peppol BIS Billing 3.0, May 2026 release, EN 16931 model bound to UBL

Severity note: fatal, from the Flag column of the Peppol BIS Billing 3.0 UBL rules index retrieved 2026-10-18.

## Plain-language reading

An invoice line (BG-25) must have an invoiced quantity unit of measure code (BT-130). The message starts with "An", not "Each". It says "shall have". The published test checks that the invoiced quantity or the credited quantity has a unit code. The context is the invoice line or the credit note line.

## What to change

Add a unit code on the invoiced quantity, or on the credited quantity.

## Illustration

Illustration of the condition in the official statement. Not an example published by the source.

**Fails the stated condition.** The invoiced quantity has no unit code, and the credited quantity has no unit code.

**Passes the stated condition.** The invoiced quantity has a unit code, or the credited quantity has a unit code.

## Published context and test

Copied from the source. Not reimplemented on this page.

```
cac:InvoiceLine | cac:CreditNoteLine
```

```
exists(cbc:InvoicedQuantity/@unitCode) or exists(cbc:CreditedQuantity/@unitCode)
```

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