Message type: E = Error
Message class:  CNV - Conversion: Messages for Conversion Services (CNCC) 
Message number: 871
Message text: Reloading tables is possible only in phase &
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The SAP error message "CNV871 Reloading tables is possible only in phase &" typically occurs during a data migration or conversion process, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error indicates that the system is trying to reload data into a table at a phase where reloading is not permitted.
Cause: Incorrect Phase: The error usually arises when the system is in a phase of the migration process that does not allow for reloading of tables. Each phase of the migration process has specific rules and restrictions. Data Consistency: The system may have already committed changes to the database, and reloading data could compromise data integrity. Process Interruption: If a previous migration step was interrupted or failed, it might leave the system in a state where reloading is not allowed.
Solution: Check Migration Phase: Verify the current phase of the migration process. Ensure that you are in a phase that allows
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