Message type: E = Error
Message class:  CNV_20100 - Messageclass for chart of account conversion 
Message number: 647
Message text: &1 rows from table &2 have been saved in the backup table &3
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The SAP error message CNV_20100647 indicates that a certain number of rows from a specified table have been saved in a backup table. This message is typically associated with data migration or data conversion processes, particularly when using SAP's Data Migration tools or during system upgrades.
Cause: The error message CNV_20100647 usually occurs during a data migration or conversion process when the system identifies that certain rows in a table do not meet the required criteria for the migration or conversion. This could be due to various reasons, such as: Data Quality Issues: The data in the original table may not conform to the expected format or constraints. Inconsistent Data: There may be inconsistencies or duplicates in the data that prevent it from being migrated directly. Business Rules Violations: The data may violate specific business rules defined in the target system. Technical Constraints: There may be technical limitations or constraints that prevent certain rows from being
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