PEPPOL-EN16931-CL003
Reason code MUST be according to UNCL 7161 D.16B.
error: the document is invalid
Peppol documentation ↗
What the rule checks
As the rule set's publisher wrote it. The rule runs on every element the context matches, and fails where the test is false; the validator reports the line of that element.
Context
cac:AllowanceCharge[cbc:ChargeIndicator = 'true']/cbc:AllowanceChargeReasonCode
Test
some $code in $UNCL7161 satisfies normalize-space(text()) = $code
Checked with Peppol BIS Billing 3.0 Invoice, Peppol BIS Billing 3.0 Credit Note