SAP HCI is built as Integration Platform-as-a-Provider (PAAS) which helps you to combine many impartial devices/apps for a company approach. HCI can do Cloud to Cloud, Cloud to On-premise, On-premise to On-premise and Hybrid design. HCI gives Adapters (Connectivity selections) which include: Cleaning soap Adapter, IDoc, HTTP, Mail, SFTP,Ariba, oData. https://s4hanacloudsapnotes25702.idblogmaker.com/27835322/hana-cloud-integration