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Set up RFC Connections to Backend SystemsLocate this document in the navigation structure

To consume catalogs containing Web Dynpro ABAP and SAPGUI for HTML apps from a specific back-end system, two types of RFC connections to the back-end system are required.

  • ABAP connection (type 3):

    This connection type is used to replicate app descriptors from the back-end server to the front-end server. Applications which use Web Dynpro and SAP GUI for HTML as UI technology carry app descriptors which provide information required to access them from the SAP Fiori launchpad.
  • HTTP(S) connection (type H):

    This connection type is used to start Web Dynpro apps and transactions using SAP GUI for HTML and retrieve the business data.

To set up the connections, you first need to maintain a mapping table and then create the necessary RFC connections.