Message type: E = Error
Message class:  CNV_20100 - Messageclass for chart of account conversion 
Message number: 695
Message text: Value of &1 changed for chart of account &2
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
For chart of account &V2& value of field &V1& changed from &V3& to &V4&
after the mapping phase. This might have impact on the conversion.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message CNV_20100695, which states "Value of &1 changed for chart of account &2," typically occurs during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error indicates that a value associated with a specific chart of accounts has been modified or is inconsistent with the expected values during the migration process.
Cause: Data Inconsistency: The value being migrated does not match the expected format or value range defined in the target system's chart of accounts. Mapping Issues: There may be a problem with the mapping of values from the source system to the target system, leading to discrepancies. Configuration Changes: Changes in the configuration of the chart of accounts in the target system after the migration plan was created can lead to this error. Duplicate Values: If the value being migrated already exists in the target chart of accounts and is not allowed to
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