How To Fix KG378 - System cannot summarize data across the characteristic &

SAP Error Message - Details

• Message type: E = Error

• Message class: KG - CO-PA Planning

• Message number: 378

• Message text: System cannot summarize data across the characteristic &

What causes this issue?

Characteristic &V1& is contained as an access-level characteristic in
ratio scheme &V2&. Therefore the system cannot summarize the values of
this characteristics.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Select the "Retain" option for the characteristic &V1& on the
"Processing Rules" screen.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message KG378 - System cannot summarize data across the characteristic & ?

  The SAP error message KG378 ("System cannot summarize data across the characteristic &") typically occurs in the context of SAP BW (Business Warehouse) or SAP CO (Controlling) when there is an attempt to aggregate or summarize data across a characteristic that is not allowed or not properly configured.
  Cause:
  
  
  Incompatible Characteristics: The error often arises when trying to summarize data across characteristics that are not compatible. For example, if you are trying to aggregate data that has different values for a characteristic that is not allowed to be summarized together.
  
  
  Missing Aggregation Levels: The characteristic in question may not have the necessary aggregation levels defined in the InfoObject or the data model.
  
  
  Data Model Issues: There may be issues with the data model, such as missing or incorrect relationships between characteristics in the InfoProvider.
  
  
  Data Type Mismatch: If the data types of the characteristics being summarized are not compatible, this can also lead to this error.
  
  
  Hierarchy Issues: If the characteristic is part of a hierarchy and the aggregation is attempted at a level that does not support it, this error can occur.
  
  
  Solution:
  
  
  Check Compatibility: Review the characteristics involved in the aggregation and ensure they are compatible for summarization. You may need to adjust your query or report to avoid incompatible characteristics.
  
  
  Define Aggregation Levels: Ensure that the necessary aggregation levels are defined for the characteristic in the InfoObject settings. You can do this in the SAP BW modeling tools.
  
  
  Review Data Model: Check the data model for any inconsistencies or missing relationships. Ensure that the InfoProvider is correctly set up to allow for the desired aggregations.
  
  
  Data Type Verification: Verify that the data types of the characteristics being summarized are compatible. If necessary, convert or adjust the data types.
  
  
  Hierarchy Configuration: If the characteristic is part of a hierarchy, ensure that the aggregation is being performed at a valid level within that hierarchy.
  
  
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance on the characteristics and their aggregation rules.
  
  
  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 to common problems.
  
  
  Transaction Codes: Use transaction codes like RSA1 (Data Warehousing Workbench) to check InfoObjects and InfoProviders, and RSRT (Query Monitor) to test queries.
  
  
  Debugging: If you have access to debugging tools, you can trace the execution of the query to identify where the error is occurring.
  
  
  Community Forums: Consider reaching out to SAP community forums or support for additional insights and shared experiences from other users who may have encountered the same issue.
  
  
  By following these steps, you should be able to identify the root cause of the KG378 error and implement a suitable solution.