How To Fix RSD_TREX158 - RSTT Trace needs BWA to be used, but BWA is not available

SAP Error Message - Details

• Message type: E = Error

• Message class: RSD_TREX - Messages from TREX Aggregate Area

• Message number: 158

• Message text: RSTT Trace needs BWA to be used, but BWA is not available

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSD_TREX158 - RSTT Trace needs BWA to be used, but BWA is not available ?

  The SAP error message RSD_TREX158 indicates that the system is trying to use the BWA (Business Warehouse Accelerator) for processing, but it is not available or not properly configured. This error typically occurs in scenarios where the system is set up to leverage BWA for performance improvements in query processing, but the BWA component is either not installed, not connected, or not functioning correctly.
  Cause:
  
  BWA Not Installed: The BWA component may not be installed on the system.
  BWA Not Configured: The connection between the SAP BW system and the BWA may not be properly configured.
  BWA Not Running: The BWA service may not be running or may have encountered an error.
  Incorrect Settings: The settings in the BW system may not be correctly pointing to the BWA.
  Version Compatibility: There may be compatibility issues between the BW version and the BWA version.
  
  Solution:
  
  
  Check BWA Installation:
  
  Ensure that the BWA is installed on the server. You can check this in the SAP system landscape or by consulting your system administrator.
  
  
  
  Verify BWA Configuration:
  
  Go to the SAP BW system and check the configuration settings for BWA. You can do this in transaction RSA1 (Data Warehousing Workbench) under the "Settings" menu.
  Ensure that the BWA is correctly configured and that the connection parameters are set correctly.
  
  
  
  Check BWA Status:
  
  Verify that the BWA service is running. You can check the status of the BWA using the BWA administration tools or by accessing the BWA server directly.
  
  
  
  Review Logs:
  
  Check the logs for any errors related to BWA. This can provide insights into what might be going wrong.
  
  
  
  Update Settings:
  
  If the BWA is not being used as intended, you may need to adjust the settings in the BW system to ensure that it is configured to use BWA.
  
  
  
  Consult Documentation:
  
  Refer to the SAP documentation for BWA and BW for specific configuration steps and troubleshooting tips.
  
  
  
  Contact SAP Support:
  
  If the issue persists after checking the above points, consider reaching out to SAP support for further assistance.
  
  
  
  Related Information:
  
  BWA Documentation: SAP provides extensive documentation on how to install, configure, and troubleshoot BWA.
  SAP Notes: Check for any relevant SAP Notes that might address known issues or provide patches related to BWA and BW integration.
  Community Forums: SAP Community and other forums can be helpful for finding similar issues faced by other users and their solutions.
  
  By following these steps, you should be able to identify and resolve the issue related to the RSD_TREX158 error message.