How To Fix BRAIN594 - No aggregation allowed (structure element &1 &2)

SAP Error Message - Details

• Message type: E = Error

• Message class: BRAIN -

• Message number: 594

• Message text: No aggregation allowed (structure element &1 &2)

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message BRAIN594 - No aggregation allowed (structure element &1 &2) ?

  The SAP error message BRAIN594 ("No aggregation allowed (structure element &1 &2)") typically occurs in the context of SAP BW (Business Warehouse) or SAP BI (Business Intelligence) when you are trying to perform an aggregation operation on a characteristic or key figure that does not support aggregation. This can happen in various scenarios, such as when creating queries in BEx Query Designer or when working with InfoProviders.
  Cause:
  
  Non-Aggregatable Characteristics: The error usually arises when you attempt to aggregate a characteristic that is not designed to be aggregated. For example, certain attributes or characteristics may not have a defined aggregation method.
  Key Figures: If you are trying to aggregate a key figure that is not set up for aggregation (e.g., a text field or a characteristic that does not have a numeric value), this error can occur.
  Query Design Issues: The structure of the query may be incorrectly set up, leading to attempts to aggregate incompatible elements.
  
  Solution:
  
  Check Aggregation Settings: Review the aggregation settings for the characteristics and key figures in your InfoProvider. Ensure that the elements you are trying to aggregate are indeed aggregatable.
  Modify Query Design: If you are using BEx Query Designer, check the query design. Remove or replace the non-aggregatable elements from the query or adjust the aggregation settings.
  Use Compatible Key Figures: Ensure that you are using key figures that are designed for aggregation. For example, use numeric key figures instead of text or non-numeric fields.
  Consult Documentation: Refer to SAP documentation or help resources for specific characteristics and key figures to understand their aggregation capabilities.
  Test with Sample Data: If possible, test the query with a smaller dataset to isolate the issue and identify which specific element is causing the error.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions for common problems.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Training and Documentation: Consider reviewing training materials or documentation on SAP BW/BI query design and aggregation rules to better understand how to structure your queries.
  
  By following these steps, you should be able to identify the cause of the BRAIN594 error and implement a solution to resolve it.