How To Fix BRAIN888 - No exception aggr. in BWA for constant &1. User decision overridden.

SAP Error Message - Details

• Message type: E = Error

• Message class: BRAIN -

• Message number: 888

• Message text: No exception aggr. in BWA for constant &1. User decision overridden.

What causes this issue?

The user decision to perform exception aggregation in BWA has been
overridden.
This could be for the following reasons:
It has been explicitly overridden, for example by debugging
MultiProvider with compound characteristics that are used by the query
either directly or indirectly (as an exception aggregation reference
characteristic for example) and of which at least one is defined in such
a way that the bracket parent is supplied homogenously, and at least one
of the participating InfoProviders does not contain the bracket child
(compounding problem).
Individual InfoProvider without BWA persistency

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 BRAIN888 - No exception aggr. in BWA for constant &1. User decision overridden. ?

  The SAP error message BRAIN888 indicates that there is no exception aggregation defined in the Business Warehouse Accelerator (BWA) for a specific constant. This error typically arises when you are trying to execute a query that involves exception aggregation, but the necessary configuration is missing.
  Cause:
  
  Missing Exception Aggregation: The primary cause of this error is that the exception aggregation for the specified constant is not defined in the BWA. Exception aggregation is used in queries to handle specific cases differently from the standard aggregation.
  Incorrect Query Design: The query may be designed in a way that expects exception aggregation to be available, but it has not been set up in the backend.
  Data Model Issues: There may be issues with the data model or the InfoProvider that prevent the exception aggregation from being recognized.
  
  Solution:
  
  
  Define Exception Aggregation:
  
  Go to the relevant InfoObject in the SAP BW system.
  Check the settings for exception aggregation and ensure that the necessary constants are defined.
  If they are not defined, create the required exception aggregation for the constant in question.
  
  
  
  Check Query Design:
  
  Review the query in the Query Designer to ensure that it is correctly set up to use exception aggregation.
  Make sure that the characteristics and key figures involved are properly configured.
  
  
  
  Re-activate the InfoProvider:
  
  Sometimes, re-activating the InfoProvider can help resolve issues related to aggregation. This can be done in the Data Warehousing Workbench.
  
  
  
  Check for Updates:
  
  Ensure that your SAP BW and BWA systems are up to date with the latest patches and updates, as there may be bug fixes related to this issue.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to exception aggregation and BWA for more detailed guidance.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or additional guidance related to the BRAIN888 error.
  BWA Configuration: Familiarize yourself with the configuration settings for BWA and exception aggregation in SAP BW.
  Performance Considerations: Understand how exception aggregation can impact query performance and ensure that it is used appropriately in your queries.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with your SAP Basis or BW team for further investigation or to reach out to SAP support for assistance.