SAP HCI is created as Integration Platform-as-a-Provider (PAAS) which helps you to combine many unbiased units/purposes for a company process. HCI can perform Cloud to Cloud, Cloud to On-premise, On-premise to On-premise and Hybrid product. HCI features Adapters (Connectivity solutions) such as: Cleaning soap Adapter, IDoc, HTTP, Mail, SFTP,Ariba, oData. https://donovanreoje.answerblogs.com/28331396/hana-cloud-integration