How To Fix CNV_20100634 - Account/primary cost element &2 also exists in chart of accounts &3

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 634

• Message text: Account/primary cost element &2 also exists in chart of accounts &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 account/primary cost element
&V2& exists not only in chart of accounts &V1& (which will be
converted), but also in chart of accounts &V3& (which will not be
converted).
Account/primary 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
account/primary 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 G/L accounts or 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_20100634 - Account/primary cost element &2 also exists in chart of accounts &3 ?

  The SAP error message CNV_20100634 indicates that there is a conflict with the account or primary cost element you are trying to use. Specifically, it means that the account or primary cost element you are attempting to create or modify already exists in the specified chart of accounts. This error typically arises during data migration or when trying to create new accounts in the system.
  Cause:
  
  Duplicate Account/Cost Element: The account or primary cost element you are trying to create already exists in the specified chart of accounts.
  Data Migration Issues: If you are migrating data from another system, there may be overlaps in account numbers or cost elements.
  Configuration Errors: Incorrect configuration settings in the chart of accounts or cost element settings may lead to this error.
  
  Solution:
  
  
  Check Existing Accounts: Verify if the account or primary cost element already exists in the specified chart of accounts. You can do this by navigating to the relevant transaction (e.g., FS00 for G/L accounts) and searching for the account.
  
  
  Use a Different Account/Cost Element: If the account or cost element already exists, consider using a different number or identifier that does not conflict with existing entries.
  
  
  Data Cleanup: If you are migrating data, ensure that there are no duplicates in your source data. Clean up any duplicate entries before attempting the migration again.
  
  
  Adjust Migration Settings: If you are using a migration tool, check the settings to ensure that it is not trying to create accounts that already exist. You may need to adjust the mapping or transformation rules.
  
  
  Consult Documentation: Review SAP documentation or notes related to the specific error message for additional context or updates that may address the issue.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as FS00 (Create/Change G/L Account), OX15 (Define Chart of Accounts), and OKEQ (Maintain Cost Elements).
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Support: If the issue persists, consider reaching out to SAP support or your internal SAP team for further assistance.
  
  By following these steps, you should be able to resolve the CNV_20100634 error and successfully manage your accounts and cost elements in SAP.