How To Fix RSRMON043 - Cache not used by the query

SAP Error Message - Details

• Message type: E = Error

• Message class: RSRMON - Message Class for Technical Info

• Message number: 043

• Message text: Cache not used by the query

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSRMON043 - Cache not used by the query ?

  The SAP error message RSRMON043, which states "Cache not used by the query," typically occurs in the context of SAP BW (Business Warehouse) when a query is executed, and the system determines that it cannot utilize the cache for that particular query. This can lead to performance issues since the system has to fetch data from the database instead of using the cached results.
  Causes:
  
  
  Query Characteristics: The query may have characteristics or filters that prevent the use of the cache. For example, if the query includes variables that are not set or if it has dynamic filters, the cache may not be applicable.
  
  
  Data Changes: If the underlying data has changed since the cache was created, the system may decide not to use the cache to ensure that the results are up-to-date.
  
  
  Cache Configuration: The cache settings in the BW system may not be configured correctly, or the cache may have been cleared or invalidated.
  
  
  Query Execution Context: The execution context of the query (e.g., user authorizations, query mode) may also affect cache usage.
  
  
  Technical Issues: There could be technical issues or bugs in the BW system that prevent the cache from being utilized.
  
  
  Solutions:
  
  
  Review Query Design: Check the design of the query to ensure that it is optimized for cache usage. Avoid using too many dynamic filters or variables that could prevent caching.
  
  
  Check Data Changes: If the underlying data has changed, consider refreshing the cache or running the query after ensuring that the data is stable.
  
  
  Cache Settings: Review the cache settings in the BW system. Ensure that caching is enabled and configured correctly for the InfoProvider being used by the query.
  
  
  Rebuild Cache: If the cache is invalid or not being used, you may need to manually rebuild the cache. This can often be done through the BW administration tools.
  
  
  Monitor Query Execution: Use transaction codes like RSRT (Query Monitor) to analyze the query execution and see if there are any specific reasons why the cache is not being used.
  
  
  Check for Notes and Patches: Look for SAP Notes or patches that may address known issues related to caching in your version of SAP BW.
  
  
  Consult Documentation: Refer to SAP documentation for best practices on query performance and caching strategies.
  
  
  Related Information:
  
  Transaction Codes: Use transaction codes like RSRT (Query Monitor) and RSRV (Query Validation) to analyze and troubleshoot queries.
  SAP Notes: Search the SAP Support Portal for relevant notes that may provide additional insights or solutions for this error.
  Performance Tuning: Consider general performance tuning practices for SAP BW queries, such as optimizing InfoProviders, aggregations, and query design.
  
  By addressing the above points, you should be able to resolve the RSRMON043 error and improve the performance of your SAP BW queries.