How To Fix CNV_OM_PRESEL040 - Preselection scheduler has been stopped manually

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_OM_PRESEL - Messages for LT Object Based Preselection

• Message number: 040

• Message text: Preselection scheduler has been stopped manually

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_OM_PRESEL040 - Preselection scheduler has been stopped manually ?

  The SAP error message CNV_OM_PRESEL040 indicates that the preselection scheduler for a conversion process has been stopped manually. This error typically occurs in the context of data migration or conversion projects, particularly when using SAP's tools for data migration, such as the SAP S/4HANA Migration Cockpit or other conversion tools.
  Cause:
  The error can be caused by several factors, including:
  
  Manual Intervention: The preselection scheduler was intentionally stopped by a user or administrator.
  System Issues: There may be underlying system issues or performance problems that led to the manual stopping of the scheduler.
  Configuration Errors: Incorrect configuration settings in the migration or conversion tools may lead to the need to stop the scheduler.
  Resource Constraints: Insufficient system resources (CPU, memory, etc.) may have prompted a manual stop to prevent system overload.
  
  Solution:
  To resolve the issue, consider the following steps:
  
  Check Logs: Review the logs for any additional error messages or warnings that may provide more context about why the scheduler was stopped.
  Restart the Scheduler: If the stopping was intentional and you want to continue the process, restart the preselection scheduler. This can usually be done through the relevant transaction or tool interface.
  Review Configuration: Ensure that all configurations related to the preselection scheduler are correct and aligned with the project requirements.
  Monitor System Resources: Check the system's performance metrics to ensure that there are sufficient resources available for the scheduler to run effectively.
  Consult Documentation: Refer to the official SAP documentation for the specific migration or conversion tool you are using for any additional troubleshooting steps or best practices.
  Contact SAP Support: If the issue persists and you cannot determine the cause, consider reaching out to SAP Support for further assistance.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes that may help in monitoring or managing the preselection scheduler, such as SM37 (Job Monitoring) or specific transaction codes related to the migration tool you are using.
  SAP Notes: Check for any SAP Notes related to the error message or the specific migration tool you are using, as they may contain patches or updates that address known issues.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to diagnose and resolve the issue related to the CNV_OM_PRESEL040 error message.