warning UBL
[UBL-CR-002]-A UBL invoice should not include the UBLVersionID or it should be 2.1
/ubl:Invoice | /cn:CreditNote
not(cbc:UBLVersionID) or cbc:UBLVersionID = '2.1'
Source: EN 16931-1 Schematron, UBL syntax binding (ConnectingEurope/eInvoicing-EN16931, EUPL-1.2).
Invoice XML (UBL 2.1 Invoice/CreditNote or UN/CEFACT CII D16B, max 5 MB):
Validate