SAP HCI is built as Integration Platform-as-a-Services (PAAS) which really helps to integrate a number of unbiased techniques/apps for a company method. HCI can perform Cloud to Cloud, Cloud to On-premise, On-premise to On-premise and Hybrid product. HCI offers Adapters (Connectivity possibilities) such as: SOAP Adapter, IDoc, HTTP, Mail, SFTP,Ariba, https://sap-s-4hana-cloud70258.actoblog.com/28716126/hana-cloud-integration