# PEPPOL-EN16931-R007

Source: https://xmlvalid.com/rules/PEPPOL-EN16931-R007

> Business process MUST have an approved identifier.

- Level: error
- Rule sets: Peppol BIS Billing 3.0 rules 3.0.21
- Context: `ubl-creditnote:CreditNote | ubl-invoice:Invoice`
- Test: `$profile != 'Unknown'`

## Why it fails

- `cbc:ProfileID` is not a Peppol business process identifier.

## How to fix it

- Use `urn:fdc:peppol.eu:2017:poacc:billing:01:1.0`, the billing process.

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