[IT-R-001] BT-32 (Seller tax registration identifier) - For Italian suppliers BT-32 minimum length 11 and maximum length shall be 16. Per i fornitori italiani il BT-32 deve avere una lunghezza tra 11 e 16 caratteri
cac:AccountingSupplierParty/cac:Party[$supplierCountry = 'IT']/cac:PartyTaxScheme[normalize-space(cac:TaxScheme/cbc:ID) != 'VAT']matches(normalize-space(cbc:CompanyID),'^[A-Z0-9]{11,16}$')