# PEPPOL-COMMON-R043

Source: https://xmlvalid.com/rules/PEPPOL-COMMON-R043

> Belgian enterprise number MUST be stated in the correct format.

- Level: error
- Rule sets: Peppol BIS Billing 3.0 rules 3.0.21, Peppol Order rules 3.7, Peppol Order Response rules 3.2, Peppol Despatch Advice rules 3.5, Peppol Catalogue rules 3.5, Peppol Catalogue Response rules 3.0, Peppol Invoice Response rules 3.1, Peppol Message Level Response rules 3.0, Peppol Order Change rules 3.2, Peppol Order Cancellation rules 3.0
- Context: `cbc:EndpointID[@schemeID = '0208'] | cac:PartyIdentification/cbc:ID[@schemeID = '0208'] | cbc:CompanyID[@schemeID = '0208']`
- Test: `matches(normalize-space(), '^[0-9]{10}$') and u:mod97-0208(normalize-space())`

## Why it fails

- A Belgian enterprise number (scheme `0208`) is not ten digits, still has the `BE` prefix or dots, or fails its check (the last two digits are 97 minus the first eight modulo 97).

## How to fix it

- Write the number as ten digits without prefix or separators, such as `0123456749`.

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