Element 'cbc:CustomizationID' MUST contain value 'urn:fdc:peppol.eu:poacc:trns:order:3:extended:urn:fdc:anskaffelser.no:2019:ehf:spec:3.0'.
/ubl:Order/cbc:CustomizationID
normalize-space(text()) = 'urn:fdc:peppol.eu:poacc:trns:order:3:extended:urn:fdc:anskaffelser.no:2019:ehf:spec:3.0'