Message type: E = Error
Message class:  CNV_20000 - Messages for fiscal year change 
Message number: 084
Message text: Fiscal year variants were added manually; CNV_20000_PERIV
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The SAP error message CNV_20000084 indicates that fiscal year variants were added manually, which can lead to issues during data migration or conversion processes, particularly in the context of the SAP Conversion and Migration tools. The error is often associated with the CNV_20000_PERIV program, which is part of the SAP S/4HANA migration process.
Cause: Manual Changes: The error typically arises when fiscal year variants are manually added or modified in the system after the initial setup. This can disrupt the expected configuration and lead to inconsistencies during the migration process. Inconsistent Data: If the fiscal year variants do not align with the expected configurations or if there are discrepancies in the data, the migration tool may throw this error.
Configuration Issues: The fiscal year variant settings may not be properly configured or may conflict with the settings required for the migration.
Solution: Review Fiscal Year Variants: Check the fiscal year variants in your SAP system. Ensure
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