How To Fix RSD_TREX406 - BWA returned too much data when retrieving the reference data

SAP Error Message - Details

• Message type: E = Error

• Message class: RSD_TREX - Messages from TREX Aggregate Area

• Message number: 406

• Message text: BWA returned too much data when retrieving the reference data

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSD_TREX406 - BWA returned too much data when retrieving the reference data ?

  The SAP error message RSD_TREX406 indicates that the Business Warehouse Accelerator (BWA) has returned too much data when retrieving reference data. This typically occurs when the query or request is trying to fetch more data than the system can handle efficiently, leading to performance issues or exceeding memory limits.
  Causes:
  
  Excessive Data Volume: The query may be attempting to retrieve a large volume of data that exceeds the limits set in the BWA or the BW system.
  Inefficient Query Design: The query might not be optimized, leading to unnecessary data retrieval.
  Configuration Limits: There may be configuration settings in the BWA or BW that limit the amount of data that can be retrieved in a single request.
  Data Model Issues: The underlying data model may not be designed to handle the volume of data being queried effectively.
  
  Solutions:
  
  
  Optimize the Query:
  
  Review the query design and ensure that it is optimized to fetch only the necessary data.
  Use filters to limit the data set being retrieved.
  Consider aggregating data if detailed data is not required.
  
  
  
  Adjust BWA Settings:
  
  Check the BWA configuration settings to see if there are limits on the amount of data that can be retrieved. Adjust these settings if necessary.
  Consult the BWA documentation for guidance on tuning performance and data retrieval limits.
  
  
  
  Use Data Aggregation:
  
  If applicable, use aggregated data views or summary tables to reduce the volume of data being processed.
  
  
  
  Increase Memory Allocation:
  
  If the system allows, consider increasing the memory allocation for the BWA to handle larger data sets.
  
  
  
  Check for Data Model Issues:
  
  Review the data model for inefficiencies or issues that could lead to excessive data retrieval.
  Ensure that the data model is designed to support the queries being run.
  
  
  
  Consult SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide additional guidance.
  
  
  
  Related Information:
  
  SAP BW Documentation: Review the official SAP BW documentation for best practices on query design and performance tuning.
  BWA Administration Guide: Consult the BWA administration guide for configuration settings and performance optimization techniques.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  
  If the problem persists after trying these solutions, it may be beneficial to engage SAP support for further assistance.