How To Fix BRAIN_DEV100 - &1: exception aggregation ref. characteristic has incorrect data type

SAP Error Message - Details

• Message type: E = Error

• Message class: BRAIN_DEV - BRAIN messages (for use by development)

• Message number: 100

• Message text: &1: exception aggregation ref. characteristic has incorrect data type

What causes this issue?

The formula "&V1&" with the exception aggregation "&V2& [&V3&]" has the
exception aggregation reference characteristic "&V4&".
For the exception aggregation "&V2& [&V3&]" only reference
characteristic of the following data types are allowed:
+,,NUMC - Character string with only digits
+,,DATS - Date field (YYYYMMDD) stored as char(8)
+,,TIMS - time field (hhmmss), stored as char(6)
The exception aggregation reference characteristic "&V4&" has a
different data type.

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?

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 BRAIN_DEV100 - &1: exception aggregation ref. characteristic has incorrect data type ?

  The SAP error message BRAIN_DEV100 indicates that there is an issue with the data type of a characteristic used in an exception aggregation in SAP BW (Business Warehouse) or SAP BW/4HANA. This error typically arises when the data type of the characteristic does not match the expected type for the aggregation operation being performed.
  Cause:
  
  Data Type Mismatch: The characteristic used in the exception aggregation is expected to be of a certain data type (e.g., numeric, string), but the actual data type is different.
  Incorrect Configuration: The configuration of the InfoObject or the aggregation settings may not align with the data model or the expected input types.
  Data Source Issues: The data source feeding into the InfoProvider may have inconsistencies or incorrect data types defined.
  
  Solution:
  
  
  Check Characteristic Data Type:
  
  Go to the InfoObject definition in the SAP BW system.
  Verify the data type of the characteristic that is causing the error. Ensure it matches the expected data type for the aggregation.
  
  
  
  Adjust Exception Aggregation Settings:
  
  Review the settings for the exception aggregation in the query definition.
  Ensure that the characteristics used in the exception aggregation are compatible with the aggregation type being applied.
  
  
  
  Modify Data Source:
  
  If the data source is causing the issue, check the underlying data source (e.g., DSO, InfoCube) to ensure that the data types are correctly defined and consistent with the InfoObject definitions.
  
  
  
  Rebuild Aggregates:
  
  If the issue persists, consider rebuilding the aggregates or the query to ensure that all settings are correctly applied.
  
  
  
  Test with Sample Data:
  
  Create a test query with a limited dataset to isolate the issue and verify that the changes made resolve the error.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Documentation: Review SAP BW documentation regarding exception aggregation and data types to ensure compliance with best practices.
  Community Forums: Engage with SAP community forums or support channels for insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify and resolve the cause of the BRAIN_DEV100 error in your SAP BW environment.