SAP HCI is built as Integration Platform-as-a-Provider (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 offers Adapters (Connectivity options) such as: Cleaning soap Adapter, IDoc, HTTP, Mail, https://gregoryikhda.answerblogs.com/28408546/hana-cloud-integration