Message type: E = Error
Message class:  CNV - Conversion: Messages for Conversion Services (CNCC) 
Message number: 669
Message text: Scheduling of parallel update jobs successful
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The SAP error message "CNV669 Scheduling of parallel update jobs successful" is not actually an error in the traditional sense; rather, it is an informational message indicating that the system has successfully scheduled parallel update jobs. This message is typically associated with data migration or conversion processes, particularly when using SAP's tools for data migration, such as the SAP S/4HANA Migration Cockpit or other data conversion tools.
Cause: The message indicates that the system has successfully scheduled jobs that will run in parallel to update or migrate data. This is part of the process to ensure that data is moved efficiently and effectively, especially when dealing with large volumes of data.
Solution: Since this message is informational and not an error, no specific action is required. However, you should monitor the scheduled jobs to ensure they complete successfully. You can do this by: Checking the job logs in transaction SM37 (Job Monitoring) to see the
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