Major Differences between SAP ECC and SAP S/4HANA

S/4HANA can run either on the cloud or on premise
S/4HANA can only run on a HANA Database, while ECC can run on multiple databases (Oracle, DB2, etc.)
SAP FIORI Apps are available in S/4HANA for performing activities and generating reports in real time
In S/4HANA there are no summary tables, index tables or history tables – instead, line item tables are used
HANA database tables are column-based in S/4HANA, resulting in speed from fewer distinct values and parallel processing
S/4HANA employs a single line item table ACDOCA-Universal Journal, combining GL, AP, AR, FI, AA, CO & ML tables
Inventory management is reduced from 26 tables to a single table, MATDOC (Material Document line item)
Material Ledger is mandatory and helps for valuation in two additional currencies in S/4HANA
In S/4HANA, a parallel ledger is a prerequisite for new asset accounting
Cost Elements are merged as GL accounts in S/4HANA, resulting in no need for reconciliation from CO to FI
In S/4HANA, customer and vendor are integrated as a “Business Partner”
Material numbers have been increased to 40 characters in S/4HANA