How To Fix CNV_20100117 - There are duplicate CostEl groups or CO acct groups; maintenance required

CNV_20100117 - Overview

• Message type: E = Error

• Message class: CNV_20100 - Messageclass for chart of account conversion

• Message number: 117

• Message text: There are duplicate CostEl groups or CO acct groups; maintenance required

What causes this issue?

The check showed that cost element groups or CO account groups that have
the same name, but are currently in different charts of accounts will
belong to the same chart of accounts after the merge. It is necessary to
define a unique new name for these cost element groups or CO account
groups.

System Response

The system automatically suggests a possible unique new name. This new
name is composed as <KSTARGRP or KTOGRP>_<OLD_CoA>, with
only as many characters from the chart of accounts name as are required
to ensure that the name is unique.

How to fix this error?

If required, check and change the new names in the activity <ZK>Maintain
Dupl. CostEl Grps/PRCTR Acct Grps/Intervals/Sets</>.

Error message extract from SAP system. Copyright SAP SE.

CNV_20100117 - Details

• The SAP error message CNV_20100117 indicates that there are duplicate Cost Element groups or Controlling (CO) account groups in your system, which requires maintenance. This error typically arises during data migration or conversion processes, particularly when using SAP's Migration Cockpit or other data transfer tools.
  
  Cause:
  
  Duplicate Entries: The error is triggered when the system detects that there are multiple entries for Cost Element groups or CO account groups that are supposed to be unique.
  Data Migration Issues: During data migration, if the source data contains duplicates or if the mapping of the data is not correctly defined, it can lead to this error.
  Configuration Errors: Incorrect configuration in the system settings related to Cost Elements or CO account groups can also lead to duplicates.
  
  
  Solution:
  
  
  Identify Duplicates:
  
  Use transaction codes like OBY6 (for Cost Element groups) or OKB9 (for CO account groups) to check for existing entries.
  Run reports or queries to identify duplicate entries in the