Message type: E = Error
Message class:  CNV_20100 - Messageclass for chart of account conversion 
Message number: 305
Message text: No missing secondary cost elements in chart of accounts
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The SAP error message CNV_20100305 indicates that there are no missing secondary cost elements in the chart of accounts during a migration or conversion process, typically related to the SAP S/4HANA migration or data conversion activities. This message is part of the SAP Conversion and Migration tools, which help in transitioning from older SAP systems to newer versions or different architectures.
Cause: The error message suggests that the system is checking for secondary cost elements that should be present in the chart of accounts but are not found. Secondary cost elements are used in controlling (CO) for internal cost allocation and are essential for proper financial reporting and analysis.
Solution: Check Configuration: Ensure that the secondary cost elements are correctly configured in the system. You can do this by navigating to the relevant configuration settings in the SAP system. Create Missing Cost Elements: If the secondary cost elements are indeed missing, you may need to
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