How To Fix CNV_20110021 - In CoAr &2, there is a B segment, but no A segment for CostEl &1.

CNV_20110021 - Overview

• Message type: E = Error

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

• Message number: 021

• 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 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.

CNV_20110021 - Details

• The SAP error message CNV_20110021 typically occurs during the data migration process, particularly when using the SAP Conversion and Migration tools. This specific error indicates that there is a B segment (which usually contains detailed information) present in the data for a cost element, but there is no corresponding A segment (which usually contains the header or summary information) for that cost element.
  
  Cause:
  
  Data Inconsistency: The primary cause of this error is a mismatch or inconsistency in the data being migrated. Specifically, it suggests that the data for a cost element is incomplete, as the A segment is missing while the B segment exists.
  Incorrect Mapping: There may be an issue with how the data is mapped from the source system to the target system, leading to missing segments.
  Data Preparation Issues: If the data was not properly prepared or validated before migration, it could lead to such inconsistencies.
  
  
  Solution:
  
  Check Data Source: Review the