SAP HCI is built as Integration System-as-a-Services (PAAS) which helps you to integrate numerous independent methods/applications for a company process. HCI can perform Cloud to Cloud, Cloud to On-premise, On-premise to On-premise and Hybrid design. HCI gives Adapters (Connectivity possibilities) for example: SOAP Adapter, IDoc, HTTP, Mail, SFTP,Ariba, oData. A https://s4-hana-cloud-trial37047.ttblogs.com/7664327/hana-cloud-integration