SAP HCI is built as Integration System-as-a-Assistance (PAAS) which really helps to combine a number of impartial methods/applications for a company system. HCI can perform Cloud to Cloud, Cloud to On-premise, On-premise to On-premise and Hybrid model. HCI offers Adapters (Connectivity options) such as: Cleaning soap Adapter, IDoc, HTTP, Mail, https://s4-hana-cloud-edition27160.blogspothub.com/27770582/hana-cloud-integration