How To Fix CNV_20110022 - In CoAr &2, there is a B segment, but no A segment for CostEl &1.

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 022

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

What causes this issue?

In controlling area &V2&, there is a B segment (table CSKB), 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_20110022 - In CoAr &2, there is a B segment, but no A segment for CostEl &1. ?

  The SAP error message CNV_20110022 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 points out that there is a B segment (which usually represents a subordinate or detailed entry) without a corresponding A segment (which typically represents a header or main entry) for a given cost element.
  Cause:
  
  Data Structure Mismatch: The error arises when the data being migrated has a B segment (subordinate entry) without a corresponding A segment (main entry). This can happen if the data is not properly structured or if there are missing entries in the source data.
  Incomplete Data: The source data may be incomplete, meaning that some cost elements are defined with details (B segments) but lack the main definition (A segments).
  Incorrect Mapping: There may be issues with the mapping of data fields during the migration process, leading to inconsistencies.
  
  Solution:
  
  Check Source Data: Review the source data to ensure that all cost elements have both A and B segments defined. Make sure that for every B segment, there is a corresponding A segment.
  Data Preparation: Before migration, ensure that the data is properly prepared and structured according to the requirements of the target system. This may involve cleaning up the data or restructuring it to meet the expected format.
  Mapping Configuration: Verify the mapping configuration in the migration tool to ensure that it correctly maps the A and B segments. Adjust the mapping if necessary to ensure that all required segments are included.
  Consult Documentation: Refer to the SAP documentation for the specific migration tool you are using to understand the expected data structure and any prerequisites for successful migration.
  Testing: Conduct a test migration with a smaller dataset to identify any issues before performing a full migration. This can help isolate problems and allow for corrections to be made.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance on data migration issues.
  Migration Cockpit: Familiarize yourself with the SAP S/4HANA Migration Cockpit and its requirements for data structures, especially for financial data.
  Data Validation Tools: Utilize data validation tools or scripts to check for inconsistencies in your source data before migration.
  
  By addressing the underlying causes of the error and ensuring that your data is properly structured, you can resolve the CNV_20110022 error and proceed with your migration successfully.