How To Fix RSDD021 - No aggregates are available for optimization

SAP Error Message - Details

• Message type: E = Error

• Message class: RSDD - Message class for data manager

• Message number: 021

• Message text: No aggregates are available for optimization

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSDD021 - No aggregates are available for optimization ?

  The SAP error message RSDD021, which states "No aggregates are available for optimization," typically occurs in the context of SAP BW (Business Warehouse) when you are trying to optimize a query or a data model that relies on aggregates, but no aggregates are defined or available for the specific InfoProvider or query.
  Cause:
  
  No Aggregates Defined: The most common cause is that there are no aggregates created for the InfoCube or DataStore Object (DSO) that the query is based on.
  Aggregates Not Activated: Even if aggregates exist, they may not be activated or properly configured.
  Query Configuration: The query might be configured in a way that does not utilize the available aggregates.
  Data Model Changes: Changes in the underlying data model (like changes in dimensions or key figures) may lead to aggregates being invalidated or not being used.
  
  Solution:
  
  
  Create Aggregates:
  
  Go to the InfoCube in the SAP BW system.
  Create the necessary aggregates based on the query requirements. This can be done using the Aggregate Maintenance transaction (RSA1).
  Ensure that the aggregates are designed to optimize the specific queries you are running.
  
  
  
  Activate Aggregates:
  
  If aggregates already exist, check if they are activated. You can do this in the Aggregate Maintenance screen.
  Activate any inactive aggregates.
  
  
  
  Check Query Design:
  
  Review the query design in the BEx Query Designer to ensure that it is set up to utilize aggregates.
  Make sure that the key figures and dimensions used in the query are aligned with those defined in the aggregates.
  
  
  
  Rebuild Aggregates:
  
  If aggregates are corrupted or not functioning as expected, consider rebuilding them. This can be done by deleting the existing aggregates and creating new ones.
  
  
  
  Analyze Performance:
  
  Use the Performance Analysis tools in SAP BW to analyze the performance of your queries and see if aggregates are being used effectively.
  
  
  
  Related Information:
  
  Transaction Codes:
  
  RSA1: Data Warehousing Workbench
  RSD1: InfoObject Maintenance
  RSD2: InfoProvider Maintenance
  
  
  Documentation: Refer to SAP Help documentation for detailed steps on creating and managing aggregates.
  SAP Notes: Check for any relevant SAP Notes that might address specific issues related to aggregates and performance optimization.
  
  By following these steps, you should be able to resolve the RSDD021 error and ensure that your queries are optimized using the appropriate aggregates.