How To Fix UJA_EXCEPTION198 - Failed to perform light optimization

SAP Error Message - Details

• Message type: E = Error

• Message class: UJA_EXCEPTION - BPC: Admin exception message class

• Message number: 198

• Message text: Failed to perform light optimization

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 UJA_EXCEPTION198 - Failed to perform light optimization ?

  The SAP error message UJA_EXCEPTION198: Failed to perform light optimization typically occurs in the context of SAP BW (Business Warehouse) or SAP BW/4HANA when there are issues related to the optimization of data models or queries. This error can arise due to various reasons, including data inconsistencies, configuration issues, or problems with the underlying database.
  Possible Causes:
  
  Data Inconsistencies: There may be inconsistencies in the data that prevent the optimization process from completing successfully.
  Configuration Issues: Incorrect settings in the data model or query configuration can lead to this error.
  Database Issues: Problems with the underlying database, such as locks, performance issues, or corruption, can also trigger this error.
  Memory Limitations: Insufficient memory allocation for the optimization process can cause it to fail.
  Version Compatibility: Using incompatible versions of SAP components or add-ons may lead to unexpected behavior.
  
  Solutions:
  
  
  Check Data Consistency:
  
  Run consistency checks on the data models and queries to identify and resolve any inconsistencies.
  Use transaction codes like RSA1 to access the Data Warehousing Workbench and check for errors.
  
  
  
  Review Configuration:
  
  Verify the configuration settings for the data model or query that is causing the error.
  Ensure that all necessary settings are correctly configured.
  
  
  
  Database Maintenance:
  
  Check the database for locks or performance issues. You may need to perform database maintenance tasks such as re-indexing or updating statistics.
  Ensure that the database is running optimally and that there are no underlying issues.
  
  
  
  Memory Allocation:
  
  Review the memory settings for the SAP system. If necessary, increase the memory allocation to allow for larger optimization processes.
  
  
  
  Update SAP Components:
  
  Ensure that all SAP components are up to date and compatible with each other. Apply any relevant patches or updates.
  
  
  
  Check Logs:
  
  Review the application logs and system logs for more detailed error messages that can provide additional context about the failure.
  
  
  
  Contact SAP Support:
  
  If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance. Provide them with detailed information about the error and the steps you have already taken.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as RSA1 (Data Warehousing Workbench), RSCUSTV10 (Customizing for BW), and ST22 (Dump Analysis) for troubleshooting.
  SAP Notes: Search for SAP Notes related to UJA_EXCEPTION198 in the SAP Support Portal for any known issues or fixes.
  Documentation: Review SAP documentation for best practices on data modeling and optimization in BW/4HANA.
  
  By following these steps, you should be able to diagnose and resolve the UJA_EXCEPTION198 error effectively.