How To Fix BRAIN_DEV138 - &1: exception aggregation ref. characteristic is compounded

BRAIN_DEV138 - Overview

• Message type: E = Error

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

• Message number: 138

• Message text: &1: exception aggregation ref. characteristic is compounded

What causes this issue?

Formula "&V1&" with exception aggregation "&V2& [&V3&]" has the
exception aggregation reference characteristic "&V4&". Characteristic "
&V4&" is a compounded characteristic.
The only compounded characteristics that can be used as reference
characteristics for exception aggregation "&V2& [&V3&]" are fiscal time
characteristics. Compounded characteristic "&V4&" is not a fiscal time
characteristic.

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.

BRAIN_DEV138 - Details

• The SAP error message BRAIN_DEV138 indicates that there is an issue with the aggregation of a reference characteristic that is compounded in a query or report. This typically occurs in the context of SAP BW (Business Warehouse) or SAP BI (Business Intelligence) when working with InfoProviders, queries, or data models that involve compounded characteristics.
  
  Cause:
  The error arises when:
  
  A reference characteristic that is compounded (i.e., it is based on multiple characteristics) is being used in a way that is not supported for aggregation.
  The query or report is trying to aggregate data based on a compounded characteristic, which can lead to ambiguity in how the data should be summarized.
  
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check the Query Design:
  
  Review the query or report where the error occurs. Ensure that you are not trying to aggregate data based on a compounded characteristic directly.
  If you need to use the compounded characteristic, consider using