SAP S/4HANA is SAP's ERP suite redesigned to the SAP HANA System. Most SAP consultants which i talk to commonly have heard about HANA or S/4HANA. But there's so much of promoting jargon behind this, it is usually puzzling to put your finger firmly on what HANA or S/4HANA is https://sap-ewm15925.answerblogs.com/34111058/s-4hana-options