SAP HCI is made as Integration Platform-as-a-Support (PAAS) which helps you to integrate numerous independent systems/purposes for a company course of action. HCI can do Cloud to Cloud, Cloud to On-premise, On-premise to On-premise and Hybrid model. HCI provides Adapters (Connectivity options) such as: Cleaning soap Adapter, IDoc, HTTP, Mail, https://s4-hana-cloud-edition38147.alltdesign.com/hana-cloud-integration-48038330