Message type: E = Error
Message class:  CNV_20000 - Messages for fiscal year change 
Message number: 218
Message text: Non-leading ledger &1, Periv &2
Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.
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The SAP error message CNV_20000218 typically relates to issues encountered during the data migration process, particularly when dealing with non-leading ledgers in the context of financial data conversion. This error is often associated with the SAP S/4HANA migration process, especially when using the SAP S/4HANA Migration Cockpit or other data migration tools.
Cause: The error message CNV_20000218 indicates that there is a problem with the non-leading ledger configuration or the data being migrated. The specific causes can include: Inconsistent Data: The data being migrated may not be consistent with the configuration of the non-leading ledger. Missing Configuration: The non-leading ledger may not be properly configured in the target system. Incorrect Mapping: The mapping of accounts or financial data from the source system to the target system may be incorrect. Period Issues: The specified period (Periv &2) may not be valid for the non-leading ledger (Ledger &1).
Solution: To resolve the CNV_20000218 error, you can take the following steps: Check
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