[aligned-ibrp-001-aunz-sb]-Specification identifier (ibt-024) MUST start with the value 'urn:peppol:pint:selfbilling-1@aunz-1'.
aligned-ibrp-001-aunz-sb
/ubl:Invoice | /cn:CreditNote
starts-with(normalize-space(cbc:CustomizationID/text()), 'urn:peppol:pint:selfbilling-1@aunz-1')