SAP HCI is designed as Integration System-as-a-Service (PAAS) which helps to combine various unbiased devices/apps for a business approach. HCI can do Cloud to Cloud, Cloud to On-premise, On-premise to On-premise and Hybrid model. HCI offers Adapters (Connectivity options) like: Cleaning soap Adapter, IDoc, HTTP, Mail, SFTP,Ariba, oData. A lot https://archerzwqke.blogunok.com/28451368/hana-cloud-integration