How To Fix RSRTS_CDS047 - Default aggregation not supported (at position &1)

SAP Error Message - Details

• Message type: E = Error

• Message class: RSRTS_CDS - Messages Transient CDS Queries

• Message number: 047

• Message text: Default aggregation not supported (at position &1)

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSRTS_CDS047 - Default aggregation not supported (at position &1) ?

  The SAP error message RSRTS_CDS047: Default aggregation not supported (at position &1) typically occurs in the context of SAP BW (Business Warehouse) when working with Composite Data Sources (CDS) views or when trying to execute queries that involve aggregation.
  Cause:
  This error generally indicates that the query or the data model is attempting to use a default aggregation method that is not supported for the specific data type or context at the specified position (indicated by &1). This can happen due to several reasons:
  
  Incompatible Data Types: The aggregation method being applied may not be compatible with the data type of the field at the specified position.
  Missing Aggregation Settings: The field may not have been configured with an appropriate aggregation setting in the data model.
  Incorrect Query Design: The query may be designed in a way that does not align with the underlying data model, leading to unsupported aggregation attempts.
  CDS View Limitations: Certain CDS views may have limitations regarding the types of aggregations that can be performed.
  
  Solution:
  To resolve the RSRTS_CDS047 error, you can take the following steps:
  
  
  Check Data Types: Verify the data types of the fields involved in the aggregation. Ensure that the aggregation method is appropriate for the data type.
  
  
  Review Aggregation Settings: Go to the data model and check the aggregation settings for the fields. Ensure that the fields are set up to support the required aggregation.
  
  
  Modify the Query: If the query is incorrectly designed, consider modifying it to avoid unsupported aggregations. This may involve changing the structure of the query or the fields being aggregated.
  
  
  Use Alternative Aggregation Methods: If the default aggregation is not supported, consider using alternative aggregation methods that are compatible with the data model.
  
  
  Consult Documentation: Review SAP documentation or notes related to the specific version of BW or CDS views you are using. There may be specific guidelines or limitations documented.
  
  
  Test with Sample Data: If possible, test the query with a smaller dataset or simplified model to isolate the issue and understand which part of the query is causing the error.
  
  
  Seek Help from SAP Support: If the issue persists and you cannot find a resolution, consider reaching out to SAP support for assistance. Provide them with details about the query, data model, and the specific error message.
  
  
  Related Information:
  
  SAP BW Documentation: Review the official SAP BW documentation for information on query design and aggregation methods.
  SAP Community: Engage with the SAP Community forums where other users may have encountered similar issues and can provide insights or solutions.
  SAP Notes: Check for any relevant SAP Notes that may address known issues or provide patches related to this error.
  
  By following these steps, you should be able to identify the cause of the error and implement a suitable solution.