# PEPPOL-T01-B20401

Source: https://xmlvalid.com/rules/PEPPOL-T01-B20401

> Value MUST be part of code list 'Boolean indicator (OpenPeppol)'.

- Level: error
- Rule sets: Peppol Order rules 3.7
- Context: `/ubl:Order/cac:AllowanceCharge/cbc:ChargeIndicator`
- Test: `(some $code in $clTrueFalse satisfies $code = normalize-space(text()))`

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