Message type: E = Error
Message class:  CNV_20100 - Messageclass for chart of account conversion 
Message number: 144
Message text: Settings have been confirmed; activity cannot be executed any more
You are trying to execute an activity for which the settings have
already been confirmed.
The system considers this activity as completed and confirmed.
Consequently execution of this activity is not possible any more.
If you do have to reset the confirmation and execute the activity once
again, you can use the troubleshooting activity assigned to the activity
<ZK>Confirm CoA Settings</>. Note that resetting the confirmation is
only possible while the phase <ZK>Mapping Tables</> is active.
&ADDITIONAL_HINTS&
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_20100144 typically occurs during the execution of a data migration or conversion process, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error indicates that the settings for a specific activity have already been confirmed, and as a result, the activity cannot be executed again.
Cause: Activity Already Confirmed: The most common cause of this error is that the user has already confirmed the settings for the migration activity, and the system does not allow the same activity to be executed again without resetting or changing the confirmation status. Process Flow: The error may also arise if the process flow is not being followed correctly, leading to an attempt to execute an activity that is not in the correct state. Data Integrity: The system may prevent re-execution to maintain data integrity and avoid duplicate processing.
Solution: Check Activity Status: Review the status of the migration activity in the Migration
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