How To Fix CNV_20100684 - Masked value &1 was not converted for old CoA &3

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 684

• Message text: Masked value &1 was not converted for old CoA &3

What causes this issue?

Masked value &V1& is contained in table &V2& for the relevant CoA &V3&,
but it is not contained in the corresponding mapping table and was
consequently not converted.

How to fix this error?

If you want to convert the value &V1& in CoA &V3& during the next
conversion, include it in the mapping (CNV_COA_OTHERS) in the phase
Mapping Tables, activity Specify Mapping Values (Chart of Accounts) ,
in the mapping for 'Assignment of old/new further accounts'.
Note that relevant fields in other tables may contain the same value,
which will then be converted as well.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_20100684 - Masked value &1 was not converted for old CoA &3 ?

  The SAP error message CNV_20100684 indicates that a masked value (represented by &1) was not converted for an old Chart of Accounts (CoA) identified by &3. This error typically arises during data migration or conversion processes, particularly when using SAP's Conversion Tools for migrating data from legacy systems to SAP S/4HANA or other SAP environments.
  Cause:
  
  Data Mapping Issues: The error often occurs due to a mismatch in the mapping of values between the old Chart of Accounts and the new one. If the value being converted does not have a corresponding entry in the new CoA, the conversion fails.
  Missing Configuration: The configuration for the mapping of the old CoA to the new CoA may not be set up correctly, leading to unrecognized or unmapped values.
  Data Quality Issues: There may be issues with the data itself, such as incorrect or incomplete entries in the legacy system that do not conform to the expected format or values in the new system.
  
  Solution:
  
  Check Mapping Configuration: Review the mapping configuration between the old and new Chart of Accounts. Ensure that all necessary mappings are defined and that the values in the old CoA have corresponding entries in the new CoA.
  Data Validation: Validate the data in the legacy system to ensure that it is complete and conforms to the expected formats. Look for any discrepancies or missing values that could cause the conversion to fail.
  Adjust Masking Rules: If applicable, check the masking rules that are being applied during the conversion process. Ensure that they are correctly defined to handle the values being converted.
  Consult Documentation: Refer to SAP documentation or notes related to the specific conversion process you are using. There may be specific guidelines or known issues that can help resolve the error.
  Use Transaction Codes: Utilize transaction codes like OBY6 (for Chart of Accounts) to review and adjust the settings related to the CoA.
  Error Logs: Check the error logs for more detailed information about the specific values that are causing the issue. This can provide insights into what needs to be corrected.
  
  Related Information:
  
  SAP Notes: Look for relevant SAP Notes that may address this specific error or provide additional guidance on the conversion process.
  SAP Community: Engage with the SAP Community forums where other users may have encountered similar issues and can share their solutions.
  SAP Help Portal: Utilize the SAP Help Portal for detailed documentation on the conversion tools and processes, including best practices for migrating data.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to successfully convert the masked values for the old Chart of Accounts.