SAP HCI is developed as Integration Platform-as-a-Assistance (PAAS) which really helps to combine numerous independent techniques/apps for a business course of action. HCI can perform Cloud to Cloud, Cloud to On-premise, On-premise to On-premise and Hybrid product. HCI features Adapters (Connectivity options) like: SOAP Adapter, IDoc, HTTP, Mail, SFTP,Ariba, oData. https://s4hanacloudtrial80246.creacionblog.com/28029029/hana-cloud-integration