SAP HCI is designed as Integration Platform-as-a-Assistance (PAAS) which helps to integrate a number of unbiased systems/programs for a business system. HCI can perform 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, https://travishhtpm.blogdeazar.com/28270420/hana-cloud-integration