How To Fix /PLMU/UI_FRW020 - More than one WD component registered to supply header data

SAP Error Message - Details

• Message type: E = Error

• Message class: /PLMU/UI_FRW -

• Message number: 020

• Message text: More than one WD component registered to supply header data

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /PLMU/UI_FRW020 - More than one WD component registered to supply header data ?

  The SAP error message /PLMU/UI_FRW020 More than one WD component registered to supply header data typically occurs in the context of SAP Web Dynpro applications. This error indicates that there are multiple Web Dynpro components that are trying to provide header data for the same context, which leads to a conflict.
  Cause:
  
  Multiple Components Registered: The primary cause of this error is that more than one Web Dynpro component is registered to supply the same header data. This can happen if the application is incorrectly configured or if there are multiple components that are not properly isolated.
  Configuration Issues: There may be issues in the configuration of the Web Dynpro application, such as incorrect settings in the component controller or view controller.
  Development Errors: If the application was custom-developed, there may be errors in the code where multiple components are inadvertently trying to access or modify the same data.
  
  Solution:
  
  Check Component Registration: Review the Web Dynpro component configuration to ensure that only one component is registered to supply the header data. This can be done in the Web Dynpro application configuration settings.
  Isolate Components: If multiple components are necessary, ensure that they are properly isolated and do not conflict with each other. This may involve restructuring the application or modifying the data flow.
  Debugging: Use the debugging tools in SAP to trace the execution of the Web Dynpro application. This can help identify where the conflict is occurring and which components are involved.
  Review Code: If the application is custom-developed, review the code for any logic that may be causing multiple components to register for the same header data. Ensure that the data context is managed correctly.
  Consult Documentation: Refer to SAP documentation or community forums for any known issues or patches related to this error message.
  
  Related Information:
  
  Web Dynpro Documentation: Familiarize yourself with the Web Dynpro programming model and best practices for component design.
  SAP Notes: Check SAP Notes for any specific notes related to this error message, as there may be patches or updates that address the issue.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.