Message type: E = Error
Message class:  CNV_20100 - Messageclass for chart of account conversion 
Message number: 659
Message text: Cost element &1 &2 was deleted (non participating)
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The SAP error message CNV_20100659 indicates that a cost element has been deleted and is marked as "non-participating." This typically occurs during data migration or conversion processes, particularly when using SAP's Migration Cockpit or during the execution of a conversion program.
Cause: Deleted Cost Element: The cost element referenced in the error message has been deleted from the system. This can happen if the cost element was removed in a previous step or if it was never created in the target system. Non-Participating: The term "non-participating" suggests that the cost element is not active or not available for use in the current context, which could be due to its deletion or because it was not included in the migration scope.
Solution: Check Cost Element Status: Verify the status of the cost element in the SAP system. You can do this by navigating to the relevant transaction (e.g., transaction code KA03 for displaying cost elements) and
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