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

SAP Error Message - Details

• 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.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_20100117 - There are duplicate CostEl groups or CO acct groups; maintenance required ?

  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 relevant tables (e.g., CSKS for Cost Centers, CSKT for Cost Center texts).
  
  
  
  Remove or Merge Duplicates:
  
  If duplicates are found, you will need to either delete the unnecessary entries or merge them if applicable.
  Ensure that any dependencies or references to these Cost Elements or account groups are also addressed.
  
  
  
  Data Validation:
  
  Before running the migration again, validate the data to ensure that there are no duplicates in the source data.
  Use tools like SAP Data Services or LSMW to clean and prepare the data before migration.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or notes related to the specific migration process you are using. There may be specific guidelines or tools provided by SAP to handle such issues.
  
  
  
  Testing:
  
  After making the necessary changes, conduct thorough testing to ensure that the error does not reoccur and that the data is correctly migrated.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes for managing Cost Elements and CO account groups.
  SAP Notes: Check for any SAP Notes related to this error message for additional guidance or patches that may address the issue.
  Migration Tools: If you are using specific migration tools, refer to their documentation for best practices in handling duplicates.
  
  By following these steps, you should be able to resolve the CNV_20100117 error and successfully complete your data migration or conversion process.