Message type: E = Error
Message class:  CNV_20100 - Messageclass for chart of account conversion 
Message number: 279
Message text: Inconsistency in master data of cost element &1; see long text
Master data for cost element &V1& exists at controlling area level in
controlling area &V2& (also referred to as B-level; table CSKB), but not
at chart of accounts level in chart of accounts &V3& (also referred to
as A-level, table CSKA)
Inconsistency
Correct the master data for this cost element accordingly.
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message CNV_20100279 indicates an inconsistency in the master data of a cost element. This error typically arises during data migration or conversion processes, particularly when using SAP's data migration tools or during system upgrades.
Cause: The inconsistency in master data for a cost element can be caused by several factors, including: Missing or Incomplete Data: The cost element may not have all the required master data fields populated. Data Integrity Issues: There may be discrepancies between the cost element data in the source system and the target system.
Configuration Issues: The cost element may not be properly configured in the system, leading to inconsistencies. Data Migration Errors: Errors during the data migration process can lead to incomplete or incorrect data being transferred.
Solution: To resolve the CNV_20100279 error, you can follow these steps: Check the Long Text: The error message usually comes with a long text that provides more details about the inconsistency. Review this information
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