How To Fix 29599 - Comparison result cannot be displayed in list viewer

SAP Error Message - Details

• Message type: E = Error

• Message class: 29 - Bills of Material

• Message number: 599

• Message text: Comparison result cannot be displayed in list viewer

What causes this issue?

You chose the SAP List Viewer format to display the result of a BOM
comparison. The comparison result consists of more than 10,000 lines.
However, the output length of the SAP List Viewer is limited to a
maximum of 10,000 lines.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Deactivate the <ZK>List Viewer</> option under <ZK>Additional Settings
> Format</> on the initial screen.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message 29599 - Comparison result cannot be displayed in list viewer ?

  The SAP error message 29599, "Comparison result cannot be displayed in list viewer," typically occurs when there is an issue with displaying comparison results in the SAP List Viewer (ALV). This error can arise due to various reasons, including data inconsistencies, configuration issues, or limitations in the ALV itself.
  Causes:
  
  Data Inconsistencies: The data being compared may not be in a format that the ALV can process, or there may be missing or invalid data.
  Configuration Issues: The ALV configuration may not be set up correctly to handle the specific comparison being attempted.
  Field Lengths: If the fields being compared have different lengths or incompatible data types, it can lead to this error.
  Technical Limitations: There may be limitations in the ALV regarding the types of comparisons that can be displayed.
  
  Solutions:
  
  Check Data Integrity: Ensure that the data being compared is complete and valid. Look for any missing or incorrect entries in the dataset.
  Review ALV Configuration: Check the configuration settings for the ALV. Ensure that the fields being compared are correctly defined and that the ALV is set up to handle the comparison.
  Adjust Field Lengths: If the fields being compared have different lengths, consider adjusting them to ensure compatibility.
  Use Alternative Display Methods: If the ALV cannot display the comparison results, consider using other methods to present the data, such as standard reports or custom programs.
  Check for SAP Notes: Look for any relevant SAP Notes that may address this specific error. SAP frequently releases updates and patches that can resolve known issues.
  Debugging: If you have access to the development environment, you can debug the program to identify the exact point of failure and understand why the comparison cannot be displayed.
  
  Related Information:
  
  SAP Documentation: Refer to the official SAP documentation for the List Viewer and ALV to understand its capabilities and limitations.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  SAP Support: If the issue persists, consider reaching out to SAP Support for assistance, especially if it is impacting critical business processes.
  
  By following these steps, you should be able to identify the cause of the error and implement a suitable solution.