How To Fix CNV_20110039 - 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: 039

• 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 primary
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
primary 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_20110039 - In CoAr &2, there is a B segment, but no A segment &3 times for CostEl &1 ?

  The SAP error message CNV_20110039 typically occurs during the data migration process, particularly when using the SAP Conversion Tools for migrating data from legacy systems to SAP S/4HANA. This specific error indicates that there is a mismatch in the expected structure of the data being processed.
  Cause:
  The error message states that in the context of a specific Cost Element (CostEl), there is a B segment present, but the corresponding A segment is missing. In the context of SAP data structures:
  
  A Segment: This usually represents the header or main record for a particular entity (e.g., a cost element).
  B Segment: This represents a subordinate or detail record that is linked to the A segment.
  
  The absence of the A segment when a B segment is present indicates that the data is incomplete or incorrectly structured. This can happen due to:
  
  Incorrect data preparation or extraction from the legacy system.
  Issues in the mapping of data fields during the migration process.
  Data integrity issues where the relationships between records are not maintained.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Data Preparation: Review the data files or tables being used for migration. Ensure that for every B segment, there is a corresponding A segment. This may involve checking the source data to ensure that all necessary records are included.
  
  
  Data Mapping: Verify the mapping rules defined in the migration tool. Ensure that the mapping correctly identifies and links A and B segments.
  
  
  Data Integrity: Perform data integrity checks to ensure that the relationships between A and B segments are maintained. This may involve running queries or scripts to identify missing A segments for existing B segments.
  
  
  Consult Documentation: Refer to the SAP documentation related to the specific migration tool you are using. There may be specific guidelines or requirements for the structure of the data.
  
  
  Error Logs: Check the detailed error logs generated during the migration process. These logs may provide additional context or specific records that are causing the issue.
  
  
  Testing: After making corrections, perform a test migration with a smaller dataset to ensure that the issue is resolved before attempting a full migration.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance on data migration issues.
  SAP Community: Engage with the SAP Community forums where other users may have encountered similar issues and can provide insights or solutions.
  Migration Cockpit: If you are using the SAP S/4HANA Migration Cockpit, review the configuration and settings to ensure they align with the data structure requirements.
  
  By following these steps, you should be able to identify and resolve the underlying issue causing the CNV_20110039 error during your data migration process.