SAP HCI is created as Integration Platform-as-a-Support (PAAS) which helps you to integrate a number of impartial devices/apps for a business approach. HCI can do Cloud to Cloud, Cloud to On-premise, On-premise to On-premise and Hybrid model. HCI offers Adapters (Connectivity choices) including: SOAP Adapter, IDoc, HTTP, Mail, SFTP,Ariba, oData. http://edgarmopqp.post-blogs.com/18463450/hybris-c4c-hybris-c4c-tutorial-hybris-c4c-training