SAP HCI is developed as Integration System-as-a-Support (PAAS) which really helps to combine several unbiased methods/apps for a company procedure. HCI can do Cloud to Cloud, Cloud to On-premise, On-premise to On-premise and Hybrid design. HCI presents Adapters (Connectivity choices) for example: Cleaning soap Adapter, IDoc, HTTP, Mail, SFTP,Ariba, oData. https://s4hanacloudsapnotes46802.idblogz.com/28649960/hana-cloud-integration