SAP HCI is built as Integration Platform-as-a-Provider (PAAS) which helps you to integrate several independent techniques/programs for a business process. HCI can perform Cloud to Cloud, Cloud to On-premise, On-premise to On-premise and Hybrid product. HCI presents Adapters (Connectivity selections) for instance: Cleaning soap Adapter, IDoc, HTTP, Mail, SFTP,Ariba, oData. https://s4hanacloudtrial54709.blogsvirals.com/27755142/hana-cloud-integration