How To Fix RSD_TREX556 - BWA indexes for the following InfoCubes will be deleted and rebuilt

SAP Error Message - Details

• Message type: E = Error

• Message class: RSD_TREX - Messages from TREX Aggregate Area

• Message number: 556

• Message text: BWA indexes for the following InfoCubes will be deleted and rebuilt

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSD_TREX556 - BWA indexes for the following InfoCubes will be deleted and rebuilt ?

  The SAP error message RSD_TREX556 indicates that there is an issue with the BWA (Business Warehouse Accelerator) indexes for certain InfoCubes. This message typically arises during the process of data loading or when the system detects inconsistencies in the BWA indexes. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause:
  
  Data Inconsistencies: The BWA indexes may be out of sync with the underlying data in the InfoCubes. This can happen due to failed data loads, changes in the data model, or updates to the InfoCubes.
  Technical Issues: There may be technical issues with the BWA system itself, such as connectivity problems, configuration issues, or resource limitations.
  Version Mismatch: If there are version mismatches between the BW system and the BWA, it can lead to index inconsistencies.
  Data Model Changes: Changes in the structure of the InfoCubes, such as adding or removing fields, can necessitate a rebuild of the indexes.
  
  Solution:
  
  Rebuild the Indexes: The error message indicates that the system will delete and rebuild the BWA indexes. This is usually the correct action to take. You can monitor the process to ensure it completes successfully.
  Check Data Load Processes: Ensure that all data load processes are completed successfully without errors. If there are issues, resolve them before proceeding.
  Monitor BWA System: Check the BWA system for any performance issues or errors. Ensure that it is properly configured and has sufficient resources.
  Update Statistics: After rebuilding the indexes, it may be beneficial to update the statistics for the InfoCubes to optimize query performance.
  Check for Notes and Patches: Look for any SAP Notes or patches related to BWA and BW that may address known issues or bugs.
  Consult Documentation: Review the SAP documentation for BWA and BW for any specific recommendations or best practices regarding index management.
  
  Related Information:
  
  SAP Notes: Search the SAP Support Portal for notes related to RSD_TREX556 or BWA index issues. There may be specific notes that provide additional guidance or fixes.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as RSD1 (InfoObject maintenance), RSA1 (Data Warehousing Workbench), and RSCUSTV0 (BW Customizing).
  Monitoring Tools: Use monitoring tools available in SAP BW to keep track of data loads and BWA performance.
  Performance Tuning: Consider performance tuning for your BW system and BWA to prevent future issues with index rebuilding.
  
  If the problem persists after following these steps, it may be necessary to engage SAP support for further assistance.