SAP HCI is intended as Integration Platform-as-a-Assistance (PAAS) which really helps to combine numerous impartial devices/apps for a company system. HCI can perform Cloud to Cloud, Cloud to On-premise, On-premise to On-premise and Hybrid product. HCI offers Adapters (Connectivity alternatives) which include: Cleaning soap Adapter, IDoc, HTTP, Mail, SFTP,Ariba, oData. https://s4-hana-cloud-faq47025.blogscribble.com/28268679/hana-cloud-integration