How To Fix WEBDYNPRO_RT028 - This function is not supported in the portal or in NWBC

SAP Error Message - Details

• Message type: E = Error

• Message class: WEBDYNPRO_RT - Message class of Web Dynpro runtime

• Message number: 028

• Message text: This function is not supported in the portal or in NWBC

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message WEBDYNPRO_RT028 - This function is not supported in the portal or in NWBC ?

  SAP Error Message:
  
  WEBDYNPRO_RT028: This function is not supported in the portal or in NWBC
  
  Cause
  This error occurs when a Web Dynpro application or component tries to execute a function or use a feature that is not supported in the SAP Enterprise Portal or the NetWeaver Business Client (NWBC) environment. Some Web Dynpro UI elements or functionalities are designed to work only in the SAP GUI for Windows or in standalone Web Dynpro ABAP applications, but not within the portal or NWBC.
  Typical causes include:
  
  Use of UI elements or controls that require full SAP GUI capabilities (e.g., certain GUI controls, modal dialogs, or specific windowing features).
  Attempting to open modal dialogs or pop-ups that are not supported in portal/NWBC.
  Using APIs or methods that rely on SAP GUI scripting or SAP GUI-specific features.
  Running Web Dynpro applications in a context (portal or NWBC) that restricts certain UI interactions.
  
  
  Solution
  
  
  Check the Application Design:
  
  Review the Web Dynpro application/component to identify which function or UI element triggers the error.
  Avoid using SAP GUI-specific controls or features that are not supported in portal or NWBC.
  
  
  
  Use Supported UI Elements:
  
  Replace unsupported UI elements with portal/NWBC-compatible alternatives.
  For example, instead of modal dialogs, use inline pop-ups or navigation techniques supported in Web Dynpro for ABAP.
  
  
  
  Adjust Application Deployment:
  
  If the application requires SAP GUI features, consider running it directly in SAP GUI rather than portal or NWBC.
  Alternatively, create a separate version or mode of the application tailored for portal/NWBC usage.
  
  
  
  Check SAP Notes and Documentation:
  
  Search for SAP Notes related to WEBDYNPRO_RT028 for any patches or updates.
  SAP may provide guidance or corrections for specific Web Dynpro components.
  
  
  
  Testing:
  
  Test the application in different environments (SAP GUI, portal, NWBC) to confirm where the issue occurs.
  Adjust the application logic to detect the environment and disable unsupported features accordingly.
  
  
  
  
  Related Information
  
  
  SAP GUI vs Portal/NWBC:
  
  SAP GUI supports a richer set of UI controls and interactions compared to portal or NWBC, which are more web-based and have limitations on modal dialogs and certain controls.
  
  
  Web Dynpro for ABAP Documentation:
  
  Review SAP’s official documentation on Web Dynpro UI elements and their compatibility with different runtime environments.
  
  
  SAP Notes and KBAs:
  
  Use SAP ONE Support Launchpad to search for notes related to WEBDYNPRO_RT028 or portal/NWBC compatibility issues.
  
  
  Common Scenarios:
  
  Modal dialogs (WD_DIALOG) are often not supported in portal/NWBC.
  Certain GUI controls like CL_GUI_ALV_GRID or CL_GUI_CUSTOM_CONTAINER may not work as expected in portal/NWBC.
  
  
  
  
  Summary
  
  
  
  Aspect
  Details
  
  
  
  
  Cause
  Use of unsupported Web Dynpro functions/UI elements in portal or NWBC environment.
  
  
  Solution
  Modify application to avoid unsupported features; use portal/NWBC-compatible UI elements.
  
  
  Related
  SAP GUI supports more features than portal/NWBC; check SAP Notes and documentation.
  
  
  
  
  If you provide the specific Web Dynpro application or scenario, I can help identify the exact unsupported function and suggest a more precise fix.