warning UBL
[PEPPOL-COMMON-R054]-Dutch Chamber of Commerce (KVK) numbers (0106) MUST be stated in the correct format (12345678).
cbc:EndpointID[@schemeID = '0106'] | cac:PartyIdentification/cbc:ID[@schemeID = '0106'] | cbc:CompanyID[@schemeID = '0106']
matches(normalize-space(), '^[0-9]{8}$')
Source: Peppol BIS Billing 3.0 Schematron, UBL (OpenPeppol, docs.peppol.eu validation artefacts 3.0.21).
Invoice XML (UBL 2.1 Invoice/CreditNote or UN/CEFACT CII D16B, max 5 MB):
Validate