How To Fix CNV_20100312 - __G/L accounts and cost elements in CoA &1 are not unique

CNV_20100312 - Overview

• Message type: E = Error

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

• Message number: 312

• Message text: __G/L accounts and cost elements in CoA &1 are not unique

What causes this issue?

G/L accounts and cost elements within chart of accounts &V1& cannot be
uniquely identified with this chart of accounts, that is, the same IDs
may also be used in other charts of accounts.

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?

Error message extract from SAP system. Copyright SAP SE.

CNV_20100312 - Details

• The SAP error message CNV_20100312 indicates that there are non-unique General Ledger (G/L) accounts or cost elements in the Chart of Accounts (CoA) specified. This error typically arises during data migration or conversion processes, particularly when using SAP's Conversion Tools or during the implementation of new financial structures.
  
  Cause:
  
  Duplicate Entries: The primary cause of this error is the presence of duplicate G/L accounts or cost elements in the specified Chart of Accounts. This can happen if the same account or cost element is defined multiple times, possibly due to incorrect data preparation or extraction processes.
  Data Migration Issues: If you are migrating data from another system or consolidating multiple CoAs, there may be overlaps or duplicates that were not resolved prior to the migration.
  Configuration Errors: Incorrect configuration settings in the system can also lead to this error, especially if the system is not set up to handle multiple CoAs correctly.
  
  
  Solution:
  
  
  Identify Duplicates: 
  
  Use