How To Fix CNV_20100638 - Secondary CostEl &2 also exists as G/L acct or secondary CostEl in CoA &3

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 638

• Message text: Secondary CostEl &2 also exists as G/L acct or secondary CostEl in CoA &3

What causes this issue?

The system initially found in phase 'Preprocessing programs BEFORE
system lock that the chart of accounts conversion can be executed
<ZH>independent</> of organizational units.
One of the prerequisites for this is that all accounts/cost elements
that occur in the mapping table and are going to be changed exist only
in the chart of accounts that is going to be converted. To make
absolutely sure that this is the case, this prerequisite is checked once
again in this step (during system lock).

System Response

During this check, the system found that secondary cost element &V2&
exists not only in chart of accounts &V1& (which will be converted), but
also as a G/L account or secondary cost element in chart of accounts
&V3& (which will not be converted).
Secondary cost element &V3& &V2& must have been created a short time
ago.

How to fix this error?

The conversion can only be executed using this package if G/L account or
secondary cost element &V3& &V2& is deleted. If this is not possible, a
new package must be created, which is then executed <ZH>dependent</> on
organizational units.
&ADDITIONAL_HINTS&
In this phase, it is no longer possible to resolve the issue by changing
the mapping table.

What causes this issue?

Most likely in between the first check in phase 'Preprocessing programs
BEFORE system lock' and this check new secondary cost elements got
created in the system (in any chart 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.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_20100638 - Secondary CostEl &2 also exists as G/L acct or secondary CostEl in CoA &3 ?

  The SAP error message CNV_20100638 indicates that there is a conflict in the system regarding the use of secondary cost elements. Specifically, it suggests that a secondary cost element (Cost Element &2) is also defined as a G/L account or another secondary cost element in the Chart of Accounts (CoA) &3. This can occur during data migration or when setting up cost elements in the system.
  Cause:
  
  Duplicate Definitions: The secondary cost element you are trying to create or use is already defined as a G/L account or another secondary cost element in the specified Chart of Accounts.
  Data Migration Issues: If you are migrating data from another system, there may be inconsistencies or duplicates in the definitions of cost elements and G/L accounts.
  Configuration Errors: Incorrect configuration in the SAP system regarding cost elements and G/L accounts can lead to this error.
  
  Solution:
  
  Check Definitions: Verify the definitions of the cost element and G/L account in the Chart of Accounts. Ensure that the secondary cost element is not already defined as a G/L account or another secondary cost element.
  Adjust Configuration: If you find that the secondary cost element is incorrectly defined, you may need to adjust the configuration. This could involve:
  
  Deleting or renaming the conflicting G/L account or secondary cost element.
  Modifying the cost element to ensure it does not conflict with existing definitions.
  
  
  Data Migration Review: If this error arises during data migration, review the migration data to ensure that there are no duplicates or conflicts. You may need to clean up the data before re-attempting the migration.
  Consult Documentation: Refer to SAP documentation or notes related to cost element configuration and data migration for additional guidance.
  
  Related Information:
  
  Transaction Codes: You can use transaction codes like KA01 (Create Cost Element) and KA02 (Change Cost Element) to manage cost elements.
  Transaction Codes for G/L Accounts: Use FS00 to manage G/L accounts.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to resolve the error CNV_20100638 and ensure that your cost elements and G/L accounts are correctly configured in the SAP system.