How To Fix KH603 - Aggregation over periods is not allowed for the characteristic "&1"

SAP Error Message - Details

• Message type: E = Error

• Message class: KH - CO-PA Reporting

• Message number: 603

• Message text: Aggregation over periods is not allowed for the characteristic "&1"

What causes this issue?

For this characteristic, you specified an aggregation rule that
requires a reference field for aggregation over periods (either
"Average weighted by calendar days" or "Average weighted by factory
calendar days). This reference field is used to determine the calendar
or factory calendar.

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?

Change the definition of the key figure so that the reference field is
compatible with aggregation over time (such as "Fiscal year/period").

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message KH603 - Aggregation over periods is not allowed for the characteristic "&1" ?

  The SAP error message KH603, which states "Aggregation over periods is not allowed for the characteristic '&1'", typically occurs in the context of SAP's CO-PA (Controlling-Profitability Analysis) or other reporting tools when there is an attempt to aggregate data over time periods for a characteristic that does not support such aggregation.
  Cause:
  
  Characteristic Restrictions: The characteristic specified in the error message (represented by "&1") is not designed to be aggregated over time periods. This is often the case for characteristics that are not time-dependent or do not have a defined aggregation logic.
  Data Model Design: The data model or the configuration of the InfoObject may not allow for aggregation over certain periods due to the way the data is structured or the business logic defined in the system.
  Query Design: The query or report being executed may be incorrectly designed, attempting to aggregate data in a way that is not supported by the underlying data model.
  
  Solution:
  
  Review Characteristics: Check the characteristics used in your report or query. Ensure that you are not trying to aggregate over a characteristic that is not meant for such operations.
  Modify Query: If you are using a query or report, consider modifying it to avoid aggregating over the problematic characteristic. You may need to change the structure of your query to align with the characteristics that support aggregation.
  Consult Documentation: Refer to SAP documentation or the data model design to understand which characteristics can be aggregated and how they should be used in reports.
  Data Model Adjustment: If necessary, consult with your SAP BW or CO-PA consultant to see if adjustments can be made to the data model to allow for the desired aggregation, if it makes sense from a business perspective.
  Testing: After making changes, test the report or query again to ensure that the error is resolved and that the results are as expected.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance on handling aggregation issues in CO-PA or BW.
  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 related to CO-PA and reporting in SAP to better understand how to work with characteristics and aggregation.
  
  By following these steps, you should be able to identify the cause of the KH603 error and implement a solution to resolve it.