How To Fix IUUC_VW017 - Error creating the ALV tree

SAP Error Message - Details

• Message type: E = Error

• Message class: IUUC_VW - Message Class for IUUC View Classes

• Message number: 017

• Message text: Error creating the ALV tree

Self-Explanatory Message

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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 IUUC_VW017 - Error creating the ALV tree ?

  The SAP error message IUUC_VW017, which indicates "Error creating the ALV tree," typically occurs in the context of using the ABAP List Viewer (ALV) for displaying data in a tree structure. This error can arise due to various reasons, including issues with data retrieval, configuration, or the ALV setup itself.
  Possible Causes:
  
  Data Issues: The data being processed may be incomplete, corrupted, or not in the expected format.
  Configuration Problems: There may be issues with the ALV configuration or the way the data is being passed to the ALV function module.
  Memory Issues: Insufficient memory or resources on the application server can lead to this error.
  Authorization Issues: The user may not have the necessary authorizations to access the data or execute the ALV report.
  Code Errors: There may be bugs or errors in the custom ABAP code that is generating the ALV output.
  
  Solutions:
  
  Check Data Integrity: Ensure that the data being processed is complete and in the correct format. You can do this by running the underlying query or report separately to see if it returns the expected results.
  Review ALV Configuration: Verify the configuration settings for the ALV report. Ensure that the field catalog and layout are correctly defined.
  Monitor System Resources: Check the system's memory and resource usage. If the system is low on resources, consider optimizing the report or increasing the available resources.
  Authorization Check: Ensure that the user executing the report has the necessary authorizations. You can check this in transaction SU53 after the error occurs.
  Debugging: If you have access to the ABAP code, use the debugger to step through the code and identify where the error occurs. Look for any exceptions or issues in the data handling.
  SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error. There may be patches or updates available that resolve known issues.
  
  Related Information:
  
  Transaction Codes: You may want to use transaction codes like SE38 (for executing reports) or SE80 (for accessing the Object Navigator) to investigate further.
  ALV Documentation: Review the official SAP documentation on ALV to understand the expected structure and configuration.
  Community Forums: Consider checking SAP Community or other forums for similar issues reported by other users, as they may provide additional insights or solutions.
  
  If the problem persists after trying the above solutions, it may be beneficial to reach out to your SAP Basis or ABAP development team for further assistance.