SAP Knowledge Base Article - Preview

2626799 - Getting error when trying to Open WebGUI and WebDynpro Apps


An SAP Web Dispatcher is used as an entry point for a Fiori landscape.

The SAP Web Dispatcher was configured per the relevant Fiori / UI Technology Guide.

Besides using Fiori, other Web UI (User Interface) technologies are being used (like the WebGUI/ITS or WebDynpro).

However, they do not work correctly if the access is performed through the Web Dispatcher (for example, the logon page does not work, dropdown menus do not work, ...).

Direct access to the backend presents no issues.



  • SAP Netweaver release independent
  • Client/Server Technology - Web Dispatcher
  • Frontend Services / SAP Internet Transaction Server
  • Frontend Services / SAP GUI for HTML
  • Web Dynpro / Web Dynpro ABAP
  • Web Dynpro / Unified Rendering
  • Cross-Application Components / Frontend / SAP Fiori Launchpad
  • Cross-Application Components / SAP UI5 / SAP UI5 Core and Runtime
  • Cross-Application Components / SAP UI Integration / SAP Fiori Launchpad services
  • Cross-Application Components / SAP Fiori Launchpad / SAP Fiori Launchpad (ABAP Services)
  • Cross-Application Components / SAP Fiori Launchpad / SAP Fiori Launchpad Core (Client)


SAP Fiori all versions ; SAP NetWeaver all versions


Web gui, Fiori 1.0, Fiori 2.0, #SAPFiori, #SAPFLP, WDA, S4FIN_HTTPS, SSO, MYSAPSSO2, X-Frame Options, Fiori launchpad, 500 internal server, Web Dynpro , KBA , CA-FE-FLP-EU , Please use CA-FLP-FE-UI , BC-FES-WGU , SAP GUI for HTML , BC-FES-ITS , SAP Internet Transaction Server , BC-WD-UR , Unified Rendering , BC-WD-ABA , Web Dynpro ABAP , BC-CST-WDP , Web Dispatcher , CA-UI5-COR , Core and Runtime , CA-FLP-ABA , SAP Fiori Launchpad ABAP Services , CA-UI2-INT-FE , Please use CA-FLP-FE-COR , CA-FE-FLP , SAP Fiori Launchpad , CA-FLP-FE-COR , SAP Fiori Launchpad Frontend Core and Services , Problem

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