SAP HCI is made as Integration Platform-as-a-Service (PAAS) which really helps to integrate many impartial units/programs for a company approach. HCI can do Cloud to Cloud, Cloud to On-premise, On-premise to On-premise and Hybrid design. HCI features Adapters (Connectivity solutions) including: SOAP Adapter, IDoc, HTTP, Mail, SFTP,Ariba, oData. A l