How To Fix BRAIN345 - No hierarchies in characteristic &1;exception aggregation &2 not possible

SAP Error Message - Details

• Message type: E = Error

• Message class: BRAIN -

• Message number: 345

• Message text: No hierarchies in characteristic &1;exception aggregation &2 not possible

What causes this issue?

Exception aggregation &V2& only works along a hierarchy.No hierarchies
can be created for reference characteristic&V1& , however.

System Response

The exception aggregation on form element &V3& will be ignored.

How to fix this error?

Check the query definition.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message BRAIN345 - No hierarchies in characteristic &1;exception aggregation &2 not possible ?

  The SAP error message BRAIN345 indicates that there are no hierarchies defined for a specific characteristic in the context of exception aggregation. This error typically arises in SAP BW (Business Warehouse) or SAP BI (Business Intelligence) environments when trying to perform operations that require hierarchical data structures.
  Cause:
  
  Missing Hierarchies: The characteristic specified in the error message does not have any hierarchies defined. Hierarchies are essential for certain types of aggregations and analyses.
  Incorrect Configuration: The characteristic may not be properly configured in the InfoObject settings, leading to the absence of hierarchies.
  Data Model Issues: There may be issues with the data model or the way the data is structured, preventing the use of hierarchies.
  
  Solution:
  
  
  Define Hierarchies:
  
  Go to the InfoObject maintenance in the SAP BW system.
  Locate the characteristic mentioned in the error message.
  Check if hierarchies are defined. If not, create the necessary hierarchies.
  Ensure that the hierarchy levels are correctly defined and that they reflect the desired structure.
  
  
  
  Check Aggregation Settings:
  
  Review the settings for exception aggregation. Ensure that the aggregation type you are trying to use is compatible with the characteristics and their hierarchies.
  
  
  
  Data Load and Modeling:
  
  Ensure that the data load process is correctly populating the characteristic values and that the hierarchy data is included in the data model.
  If necessary, reprocess the data load to ensure that all relevant data is available.
  
  
  
  Testing:
  
  After defining the hierarchies, test the aggregation again to confirm that the error has been resolved.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any specific patches or updates related to this error message.
  Documentation: Refer to SAP BW documentation for detailed information on working with hierarchies and exception aggregation.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as RSA1 (Data Warehousing Workbench) for managing InfoObjects and hierarchies.
  
  By following these steps, you should be able to resolve the BRAIN345 error and successfully perform the desired aggregation operations in your SAP BW environment.