# UBL-DT-10

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: warning
- Statement language: en
- Last verified: 2026-10-18

## Official statement

> Scheme data uri attribute should not be present

Source: https://docs.peppol.eu/poacc/billing/3.0/rules/ubl-tc434/UBL-DT-10/

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

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

## Plain-language reading

A scheme data uri attribute should not be present. The statement has no period and says should not. It does not say shall. It is 47 characters. The statement spells uri in lowercase. The flag is warning. The context is the same string as BR-CO-18. The published test is not(//@schemeDataURI). The attribute spells URI in uppercase. It does not call count and it does not call exists.

## What to change

Leave the schemeDataURI attribute off the document.

## Illustration

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

**Fails the stated condition.** The document includes a schemeDataURI attribute.

**Passes the stated condition.** The document includes no schemeDataURI attribute.

## Published context and test

Copied from the source. Not reimplemented on this page.

```
/ubl:Invoice | /cn:CreditNote
```

```
not(//@schemeDataURI)
```

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