SAP HCI is created as Integration Platform-as-a-Services (PAAS) which helps to integrate multiple independent methods/applications for a company course of action. HCI can perform Cloud to Cloud, Cloud to On-premise, On-premise to On-premise and Hybrid model. HCI presents Adapters (Connectivity selections) for instance: SOAP Adapter, IDoc, HTTP, Mail, SFTP,Ariba, oData. https://s4hanacloudtutorial95826.therainblog.com/27609298/hana-cloud-integration