How To Fix CNV_20110040 - In CoAr &2, there is a B segment, but no A segment &3 times for CostEl &1

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_20110 - Pre-analysis for chart of accounts conversion

• Message number: 040

• Message text: In CoAr &2, there is a B segment, but no A segment &3 times for CostEl &1

What causes this issue?

In controlling area &V2&, there is a B segment (table CSKB) with &V3&
different validity periods, but no A segment (table CSKA) for secondary
cost element &V1&.

How to fix this error?

Remove this inconsistency by either creating the missing master data
for cost element &V1& or deleting the controlling area-related data for
secondary cost element &V1&.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_20110040 - In CoAr &2, there is a B segment, but no A segment &3 times for CostEl &1 ?

  The SAP error message CNV_20110040 typically occurs during the data migration process, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error indicates that there is a mismatch in the expected data structure for cost elements in the migration process. Specifically, it suggests that there is a B segment (which usually contains detailed information) present without a corresponding A segment (which typically contains the header or main information) for the specified cost element.
  Cause:
  
  Data Structure Mismatch: The error arises when the data being migrated has a B segment without a corresponding A segment. This can happen if the data is incomplete or incorrectly formatted.
  Incorrect Mapping: The mapping of the source data to the target structure may not be set up correctly, leading to missing segments.
  Data Quality Issues: There may be issues with the source data, such as missing records or incorrect relationships between the segments.
  
  Solution:
  
  Check Data Completeness: Ensure that for every B segment, there is a corresponding A segment in the source data. Review the data files or tables being used for migration.
  Review Mapping Configuration: Verify the mapping configuration in the migration tool to ensure that it correctly defines the relationship between A and B segments.
  Data Validation: Perform data validation checks to identify any inconsistencies or missing data in the source system. This may involve running queries or using data profiling tools.
  Correct Data Issues: If any issues are found in the source data, correct them before attempting the migration again. This may involve adding missing A segments or correcting the relationships.
  Consult Documentation: Refer to SAP documentation or notes related to the specific migration process you are using for any additional guidance or troubleshooting steps.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional context.
  Migration Cockpit Documentation: Review the official SAP documentation for the Migration Cockpit, which may provide insights into the expected data structure and common issues.
  Community Forums: Consider searching or posting in SAP community forums or SAP support channels for additional assistance from other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify and resolve the cause of the CNV_20110040 error during your migration process.