How To Fix RS_DME_ABC021 - Class &1 occurs several times. It should only occur once

RS_DME_ABC021 - Overview

• Message type: E = Error

• Message class: RS_DME_ABC - Messages for ABC Classification

• Message number: 021

• Message text: Class &1 occurs several times. It should only occur once

What causes this issue?

A class can only be used in one classification rule in ABC
classification.
However, you have used the same class in several classification rules.

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?

Use a class that you have not yet used.

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 RS_DME_ABC021 - Class &1 occurs several times. It should only occur once ?

  The SAP error message RS_DME_ABC021 indicates that a specific class (denoted by &1) is being processed multiple times when it should only occur once. This error typically arises in the context of data extraction or data transfer processes, particularly in the Data Warehousing or Business Intelligence modules.
  
  Cause:
  
  
  Duplicate Entries: The most common cause of this error is the presence of duplicate entries in the data source or in the data model that is being processed. This can happen if the data is not properly cleaned or if there are issues with the data extraction logic.
  
  
  Incorrect Configuration: Misconfiguration in the data model or extraction settings can lead to the same class being processed multiple times.
  
  
  Data Source Issues: If the data source itself has issues, such as incorrect joins or relationships, it can lead to multiple occurrences of the same class.
  
  
  Transformation Logic: If there are transformations applied that inadvertently cause duplication, this can