How To Fix WWP1003 - Error when calling a method for class CL_GUI_LIST_TREE

SAP Error Message - Details

• Message type: E = Error

• Message class: WWP1 - Planning Workbench

• Message number: 003

• Message text: Error when calling a method for class CL_GUI_LIST_TREE

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.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message WWP1003 - Error when calling a method for class CL_GUI_LIST_TREE ?

  The SAP error message WWP1003, which occurs when calling a method for the class CL_GUI_LIST_TREE, typically indicates an issue related to the graphical user interface (GUI) component in SAP. This error can arise due to various reasons, including incorrect parameters being passed to the method, issues with the GUI environment, or problems with the underlying data.
  Possible Causes:
  
  Incorrect Method Parameters: The parameters being passed to the method of CL_GUI_LIST_TREE may not be valid or may not meet the expected format.
  GUI Environment Issues: There may be issues with the SAP GUI installation or configuration on the client machine.
  Data Issues: The data being processed or displayed in the list tree may be inconsistent or corrupted.
  Authorization Issues: The user may not have the necessary authorizations to execute the method or access the data.
  Version Compatibility: There may be compatibility issues between the SAP version and the GUI components being used.
  
  Solutions:
  
  Check Method Parameters: Review the parameters being passed to the method and ensure they are correct and valid. Refer to the SAP documentation for the CL_GUI_LIST_TREE class to verify the expected parameters.
  Update SAP GUI: Ensure that the SAP GUI is up to date. Sometimes, updating the GUI can resolve compatibility issues.
  Check Data Integrity: Verify the data being processed. Ensure that it is not corrupted and meets the expected format.
  Review Authorizations: Check the user’s authorizations to ensure they have the necessary permissions to execute the method.
  Debugging: If you have access to the ABAP code, consider debugging the program to identify the exact point of failure and the state of the parameters being passed.
  Consult SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error message or provide patches or updates.
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for CL_GUI_LIST_TREE to understand its methods and expected parameters.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found.
  SAP Support: If the issue persists, consider reaching out to SAP Support for assistance, providing them with detailed information about the error and the context in which it occurs.
  
  By following these steps, you should be able to diagnose and resolve the WWP1003 error related to the CL_GUI_LIST_TREE class in SAP.