How To Fix RSRTS_CDS165 - Exception aggregation &1 at position &2: &3 elements in total, &4 allowed

SAP Error Message - Details

• Message type: E = Error

• Message class: RSRTS_CDS - Messages Transient CDS Queries

• Message number: 165

• Message text: Exception aggregation &1 at position &2: &3 elements in total, &4 allowed

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSRTS_CDS165 - Exception aggregation &1 at position &2: &3 elements in total, &4 allowed ?

  The SAP error message RSRTS_CDS165 typically occurs in the context of SAP BW (Business Warehouse) or SAP HANA when working with Composite Data Sources (CDS) views and involves issues related to aggregation in queries. This error indicates that there is a problem with the number of elements being aggregated in a query, exceeding the allowed limit.
  Cause:
  
  Aggregation Limit Exceeded: The error message indicates that the number of elements being aggregated exceeds the allowed limit. This can happen if you are trying to aggregate too many fields or dimensions in a single query.
  Query Design: The design of the query may not be optimal, leading to excessive aggregation requirements.
  Data Model Constraints: The underlying data model may have constraints that limit the number of aggregations that can be performed.
  
  Solution:
  
  Review Query Design: Check the query design in the Query Designer. Reduce the number of aggregated fields or dimensions to stay within the allowed limits.
  Optimize Aggregation: Consider optimizing the aggregation logic. This may involve restructuring the query or using calculated fields to reduce the number of elements being aggregated.
  Check Aggregation Settings: Review the aggregation settings in the InfoProvider or the underlying data model to ensure they are configured correctly.
  Use Hierarchies: If applicable, use hierarchies to reduce the number of elements being aggregated.
  Consult Documentation: Refer to SAP documentation for specific limits related to your version of SAP BW or HANA, as these limits can vary.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide guidance on best practices for query design and aggregation.
  Performance Considerations: Be aware that excessive aggregation can lead to performance issues. Always aim for efficient query design.
  Testing: After making changes, test the query to ensure that it runs successfully without exceeding the aggregation limits.
  
  If the problem persists after trying the above solutions, consider reaching out to SAP support for further assistance, providing them with detailed information about the query and the context in which the error occurs.