# EHF-REMINDER-B00201

Source: https://xmlvalid.com/rules/EHF-REMINDER-B00201

> Element 'cbc:CustomizationID' MUST contain value 'urn:cen.eu:en16931:2017#compliant#urn:fdc:peppol.eu:2017:poacc:billing:3.0#conformant#urn:fdc:anskaffelser.no:2019:ehf:reminder:3.0'.

- Level: error
- Rule sets: EHF Reminder 3.0 rules (Norway) release 2026-09-29
- Context: `/ubl:Invoice/cbc:CustomizationID`
- Test: `normalize-space(text()) = 'urn:cen.eu:en16931:2017#compliant#urn:fdc:peppol.eu:2017:poacc:billing:3.0#conformant#urn:fdc:anskaffelser.no:2019:ehf:reminder:3.0'`

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