How To Fix RSDD426 - '&3': '&2' cannot be in aggregate because of characteristic '&1'

SAP Error Message - Details

• Message type: E = Error

• Message class: RSDD - Message class for data manager

• Message number: 426

• Message text: '&3': '&2' cannot be in aggregate because of characteristic '&1'

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message RSDD426 - '&3': '&2' cannot be in aggregate because of characteristic '&1' ?

  The SAP error message RSDD426 typically occurs in the context of SAP BW (Business Warehouse) when there is an issue with the aggregation of data in a query or InfoProvider. The message indicates that a certain characteristic cannot be included in an aggregate due to its relationship with another characteristic.
  Cause:
  The error message RSDD426 is triggered when:
  
  Incompatible Characteristics: The characteristic specified (represented by &1) is incompatible with the aggregation of the measure or characteristic specified (represented by &2) in the context of the aggregate (represented by &3).
  Data Model Issues: There may be issues in the data model, such as incorrect relationships or hierarchies that prevent the aggregation from being valid.
  Missing Aggregation Logic: The aggregation logic for the characteristic may not be defined correctly, or the characteristic may not be suitable for aggregation due to its nature (e.g., it may be a text field or a non-aggregatable field).
  
  Solution:
  To resolve the RSDD426 error, you can take the following steps:
  
  
  Check Characteristics: Review the characteristics involved in the error message. Ensure that the characteristic &1 is appropriate for aggregation with the measure or characteristic &2.
  
  
  Review Aggregation Settings: 
  
  Go to the InfoObject settings for the characteristic &1 and check its aggregation settings.
  Ensure that the aggregation type is set correctly (e.g., SUM, COUNT, etc.) and that it is compatible with the data type of the characteristic.
  
  
  
  Adjust the Query: If the query is trying to aggregate data in a way that is not valid, consider modifying the query to exclude the incompatible characteristic or to change the aggregation logic.
  
  
  Check Data Model: 
  
  Review the data model for any inconsistencies or incorrect relationships between characteristics.
  Ensure that the hierarchy and relationships are correctly defined.
  
  
  
  Rebuild Aggregates: If the aggregates are corrupted or not functioning as expected, consider rebuilding the aggregates for the InfoProvider.
  
  
  Consult Documentation: Refer to SAP documentation or notes related to the specific characteristics and aggregates you are working with for additional guidance.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  BW Modeling Tools: Utilize BW modeling tools to analyze the InfoObjects and aggregates to ensure they are set up correctly.
  
  By following these steps, you should be able to identify the root cause of the RSDD426 error and implement a solution to resolve it.