SAP HCI is intended as Integration System-as-a-Services (PAAS) which helps you to integrate a number of impartial devices/apps for a business method. HCI can do Cloud to Cloud, Cloud to On-premise, On-premise to On-premise and Hybrid model. HCI offers Adapters (Connectivity alternatives) including: SOAP Adapter, IDoc, HTTP, Mail, SFTP,Ariba, oData. https://s4hanacloudonboarding73860.digiblogbox.com/53629351/hana-cloud-integration