Communication Between Client and SAP Web Dispatcher 
According to the type of the app that you use and the type of the task that you perform, the client can issue the following types of requests:
HTML requests
OData requests
InA search requests
For fact sheets and analytical apps, these requests are forwarded to the ABAP front-end server or to the relevant back-end server (ABAP or SAP HANA) by SAP Web Dispatcher. For communication between SAP Web Dispatcher and the client, an HTTPS connection is established.
To set up the connection between the client and SAP Web Dispatcher, you must make the following settings:
You must configure SAP Web Dispatcher to support SSL.
You must configure the SAP Web Dispatcher server port.
To ensure confidentiality and integrity of data, SAP recommends protecting HTTP connections by using Transport Layer Security (TLS) or Secure Sockets Layer (SSL). For information about setting up communication encryption for SAP NetWeaver, see the following documentation:
For SAP NetWeaver 7.31, see the SAP Help Portal at .
For SAP NetWeaver 7.4, see the SAP Help Portal at .