SAP HCI is designed as Integration System-as-a-Provider (PAAS) which helps you to combine many independent techniques/applications for a company process. HCI can perform Cloud to Cloud, Cloud to On-premise, On-premise to On-premise and Hybrid design. HCI gives Adapters (Connectivity possibilities) for example: SOAP Adapter, IDoc, HTTP, Mail, SFTP,Ariba, oData. A https://s4-hana-cloud-tutorial37158.blogsumer.com/27821262/hana-cloud-integration