How To Fix CNV_CDMC_CA045 - & is already scheduled

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_CDMC_CA - CDMC Clearing Analysis

• Message number: 045

• Message text: & is already scheduled

What causes this issue?

You have attempted to execute an activity that is already scheduled in
the defined systems.

System Response

It is not possible to execute the scheduled activity again.

How to fix this error?

You must wait until the activity reaches the <ZK>Finished</> or the
<ZK>Aborted</> state.

Procedure for System Administrators

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.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_CDMC_CA045 - & is already scheduled ?

  The SAP error message CNV_CDMC_CA045 typically relates to issues encountered during the data migration process, particularly when using the SAP S/4HANA Migration Cockpit or other data migration tools. The error message indicates that a certain task or process is already scheduled, which can lead to conflicts or issues in executing the migration steps.
  Cause:
  
  Concurrent Execution: The error often arises when there is an attempt to execute a migration task that is already in progress or scheduled. This can happen if multiple users or processes are trying to run the same migration task simultaneously.
  Locking Mechanism: SAP uses a locking mechanism to prevent data inconsistencies. If a task is already locked by another process, you may encounter this error.
  System Configuration: There may be configuration issues or settings that prevent the task from being executed properly.
  
  Solution:
  
  Check Scheduled Tasks: Review the list of scheduled tasks in the migration cockpit or relevant transaction codes (like SM37 for job monitoring) to see if the task is already running or scheduled.
  Wait for Completion: If the task is currently running, you may need to wait for it to complete before attempting to run it again.
  Cancel or Delete Stuck Jobs: If you find that a job is stuck or not progressing, you may need to cancel or delete it from the job scheduler.
  Review Logs: Check the logs for more detailed error messages that can provide insights into what might be causing the issue.
  System Restart: In some cases, a system restart may help clear any locks or issues that are preventing the task from executing.
  Consult Documentation: Refer to SAP documentation or notes related to the specific migration tool you are using for any additional troubleshooting steps or known issues.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to the CNV_CDMC_CA045 error. SAP frequently updates their knowledge base with solutions for common errors.
  SAP Community: Engage with the SAP Community forums where other users may have encountered similar issues and can provide insights or solutions.
  Migration Cockpit Documentation: Review the official SAP documentation for the Migration Cockpit for best practices and troubleshooting tips.
  
  If the issue persists after trying the above solutions, it may be beneficial to reach out to SAP support for further assistance.