SAP HCI is intended as Integration System-as-a-Support (PAAS) which really helps to combine multiple independent programs/purposes for a company process. HCI can do Cloud to Cloud, Cloud to On-premise, On-premise to On-premise and Hybrid model. HCI provides Adapters (Connectivity possibilities) which include: Cleaning soap Adapter, IDoc, HTTP, Mail, SFTP,Ariba, oData. https://saps4hanacloud04691.widblog.com/83217041/hana-cloud-integration