Message type: E = Error
Message class:  CNV_CDMC_CA - CDMC Clearing Analysis 
Message number: 089
Message text: Activity & is already completed
You want to execute an activity that is already completed. You can only
execute activities of this type if an error occurred during the last
execution.
It is not possible to execute successfully completed activities again.
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_CDMC_CA089 typically indicates that a specific activity in the SAP Conversion or Migration process has already been completed. This error is part of the SAP Conversion and Data Migration Cockpit (CDMC) and is often encountered during data migration projects, especially when using tools like SAP S/4HANA Migration Cockpit.
Cause: The error occurs when: You attempt to execute an activity that has already been marked as completed in the migration process. There may be a misunderstanding in the sequence of activities, leading to an attempt to re-run a completed step. The system may have been incorrectly configured, or there may be a lack of proper checks in place to prevent re-execution of completed activities.
Solution: To resolve the CNV_CDMC_CA089 error, you can take the following steps: Check Activity Status: Go to the migration cockpit and check the status of the activities. Confirm that the activity you are trying to execute is indeed marked as completed. Review
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