How To Fix CNV_20100209 - Country-spec. CoA &1 cannot be implemented and converted at the same time

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 209

• Message text: Country-spec. CoA &1 cannot be implemented and converted at the same time

What causes this issue?

Chart of accounts &V1& (that will be converted) is a country-specific
chart of accounts for some of the participating company codes, while for
the other participating company codes it is the operative chart of
accounts. This means that country-specific chart of accounts &V3& will
be implemented for those company codes that currently use the chart of
accounts as the operative chart of accounts.
For the other company codes (those which use chart of accounts &V1& as
country-specific chart of accounts), you want to change the
country-specific chart of accounts from &V1& into &V2&, and at the same
time implement country-specific chart of accounts &V3&.

System Response

This is a contradiction. It is not possible to change a country-specific
chart of accounts and at the same time implement a new country-specific
chart of accounts in the same fields.

How to fix this error?

Change the mapping table in one of the following ways:
Include only company codes that use the chart of accounts as the
country-specific chart of accounts
Include only company codes that use the chart of accounts as the
operative chart of accounts
Do not implement the country-specific chart of accounts at all.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_20100209 - Country-spec. CoA &1 cannot be implemented and converted at the same time ?

  The SAP error message CNV_20100209 indicates that there is an issue with the implementation and conversion of a country-specific Chart of Accounts (CoA) in the context of a data migration or conversion project. This error typically arises during the use of the SAP S/4HANA Migration Cockpit or similar tools when trying to implement a new CoA while simultaneously converting data from an existing system.
  Cause:
  The error occurs because the system does not allow the simultaneous implementation of a new country-specific Chart of Accounts and the conversion of existing financial data. This is often due to the following reasons:
  
  Conflicting Processes: The implementation of a new CoA and the conversion of existing data are two distinct processes that cannot be executed at the same time.
  Data Integrity Issues: The system needs to ensure that the financial data aligns with the new CoA structure, which cannot be guaranteed if both processes are attempted simultaneously.
  Configuration Settings: There may be specific configuration settings in the SAP system that prevent the concurrent execution of these tasks.
  
  Solution:
  To resolve this error, you can follow these steps:
  
  
  Separate the Processes: Ensure that you first complete the implementation of the new country-specific Chart of Accounts before attempting to convert any existing financial data. This may involve:
  
  Implementing the new CoA.
  Validating the implementation.
  Then proceeding with the data conversion.
  
  
  
  Check Migration Settings: Review the settings in the migration tool you are using (e.g., SAP S/4HANA Migration Cockpit) to ensure that you are not trying to perform both actions at the same time.
  
  
  Consult Documentation: Refer to the SAP documentation related to the migration process and the specific requirements for implementing a new CoA. This documentation may provide additional insights or steps that need to be followed.
  
  
  Engage SAP Support: If the issue persists, consider reaching out to SAP support for assistance. They can provide guidance based on the specific configuration and version of your SAP system.
  
  
  Related Information:
  
  Migration Cockpit: Familiarize yourself with the SAP S/4HANA Migration Cockpit, which is a tool designed to facilitate data migration and may have specific guidelines for handling CoA changes.
  SAP Notes: Check for any relevant SAP Notes that may address this error or provide additional context on handling CoA implementations and conversions.
  Best Practices: Review best practices for financial data migration in SAP, which can help avoid common pitfalls and ensure a smoother transition.
  
  By following these steps, you should be able to resolve the CNV_20100209 error and successfully implement the new Chart of Accounts in your SAP system.