Educational Day of the Cyprus Organisation for Standardisation, held on 30/10/2017, with speakers Mr. Andreas Caccia, President of the European Commission CEN TC 434 Electronic Invoice and Mr. Fred Van Blommestein, Head of the Drafting Team for electronic Invoicing and directly involved in normalization of electronic messages between (B2B) - 'Business to Business' and (B2G) 'Business to Government'.