Message type: E = Error
Message class:  CNV_20100 - Messageclass for chart of account conversion 
Message number: 466
Message text: Table &1, field &2: Initial conversion routine was confirmed
The initial conversion routine ACCOUNT_CONVERT_20100 was confirmed for
the current table field &V2&.  However, this routine does not convert
numerals without leading zeros.
,,
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_20100466 typically occurs during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or other data migration tools. This message indicates that there is an issue with the initial conversion routine for a specific table and field.
Cause: The error message CNV_20100466 suggests that the initial conversion routine for the specified table and field has been confirmed, but there may be issues such as: Data Format Issues: The data in the source system may not match the expected format in the target system. Mapping Issues: There may be incorrect or incomplete mapping between the source and target fields. Missing Conversion Logic: The conversion routine may not have been properly defined or implemented for the specific field. Data Integrity Issues: There may be data integrity issues in the source data that prevent successful conversion.
Solution: To resolve this error, you can take the following steps: Check the Mapping: Review the mapping of
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