Message type: E = Error
Message class:  CNV_20100 - Messageclass for chart of account conversion 
Message number: 654
Message text: Predecessor '&' not completed yet
You are trying to start a program that cannot run until its predecessor
has finished with status "OK" or "WRG".
The program cannot be started.
Execute the predecessor '&V1&' and check the log
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_20100654 indicates that a predecessor task in a conversion or migration process has not been completed yet. This error typically arises in the context of data migration projects, particularly when using SAP's tools for data conversion, such as the SAP S/4HANA Migration Cockpit or other data migration solutions.
Cause: The error occurs when: A task that is supposed to be completed before the current task has not been finished. There may be dependencies between tasks in the migration process, and the current task cannot proceed until the predecessor task is successfully completed.
Solution: To resolve this error, you can follow these steps: Check Task Status: Review the status of the predecessor task mentioned in the error message. Ensure that it has been completed successfully. Review Logs: Look at the logs or output messages from the predecessor task to identify any issues that may have caused it to fail or not complete. Complete Predecessor Task: If
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