How To Fix SALV_EXCEPTION202 - On column &3 no aggregation can be formed

SAP Error Message - Details

• Message type: E = Error

• Message class: SALV_EXCEPTION - Exception Messages

• Message number: 202

• Message text: On column &3 no aggregation can be formed

What causes this issue?

An error occurred, when calling the method &2 of class &1.
An aggregation cannot be done using column &3.
This occurred because the data type for this column does not allow it
or because aggregation has been forbidden for this column.

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?

Check whether this column is of the following type:
Date
Time
String
Character
Aggregation cannot be done using these types.
Check whether this column has already been called with
CL_SALV_AGGREGATIONS->SET_COLUMN_AGGREGATION_ALLOWED( FALSE ). Either
delete this call or call again with TRUE.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message SALV_EXCEPTION202 - On column &3 no aggregation can be formed ?

  The SAP error message SALV_EXCEPTION202 typically occurs in the context of using the SAP ALV (ABAP List Viewer) Grid when trying to perform an aggregation operation on a column that does not support it. This can happen for various reasons, such as the data type of the column or the nature of the data itself.
  Cause:
  
  Data Type: The column you are trying to aggregate may have a data type that does not support aggregation (e.g., character fields).
  Non-Numeric Values: If the column contains non-numeric values, aggregation functions like SUM or AVG cannot be applied.
  Aggregation Settings: The aggregation settings for the ALV grid may not be correctly configured for the specific column.
  Column Configuration: The column may not be defined as an aggregatable field in the ALV configuration.
  
  Solution:
  
  Check Data Type: Ensure that the column you are trying to aggregate is of a numeric data type (e.g., INT, DEC, etc.). If it is a character type, consider converting it to a numeric type if appropriate.
  Validate Data: Check the data in the column to ensure that it contains only numeric values. If there are any non-numeric entries, you will need to clean or filter the data.
  Adjust ALV Configuration: Review the ALV configuration settings to ensure that the column is set up to allow aggregation. This may involve modifying the field catalog or the ALV grid settings.
  Use Aggregatable Fields: If the column is inherently non-aggregatable, consider using a different field that can be aggregated or redesigning the report to avoid the need for aggregation on that specific column.
  
  Related Information:
  
  ALV Grid Documentation: Review the SAP documentation on ALV Grid and aggregation to understand how to properly configure fields for aggregation.
  Debugging: If you have access to the ABAP code, you can debug the ALV report to see how the field catalog is being defined and whether the aggregation settings are being applied correctly.
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional guidance on handling aggregation in ALV reports.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.