SAP HCI is built as Integration System-as-a-Support (PAAS) which really helps to combine numerous impartial devices/purposes for a business method. HCI can perform Cloud to Cloud, Cloud to On-premise, On-premise to On-premise and Hybrid design. HCI features Adapters (Connectivity choices) for example: Cleaning soap Adapter, IDoc, HTTP, Mail, SFTP,Ariba, oData. https://s4hanacloudtutorial72592.blogdomago.com/27594941/hana-cloud-integration