The below are the impacts of S/4 HANA on existing system. Even though there are many, I have put my brief understanding. General Ledger Accounting : 1) Earlier, SAP stored the GL, Customer, Vendor and their open items in various database tables. But now with the introduction of S/4 HANA, there is an only one central table “ ACDOCA ” which updates without storing the same data in multiple tables. Thus, ease of fetching the data into custom reports. a. ACDOCA will consist of 300+ fields from controlling, material ledger, COPA and asset accounting. b. In S/4 HANA, there are primarily 2 tables i.e. BKPF (Header Records) and ACDOCA (Line Items). The earlier FAGLFLEXA and FAGLFLEXT are now removed. 2) Earlier, secondary cost elements will not be created as GL Accounts due to which the secondary cost elements would not be appearing in Financial Statements. With ...