SAP S/4HANA is SAP's ERP suite redesigned around the SAP HANA platform. Most SAP consultants that I speak to normally have heard about HANA or S/4HANA. But there is a great deal of promoting jargon powering this, it is usually puzzling to put your finger firmly on what HANA or S/4HANA is admittedly - Defend your SAP system from negative act