How To Fix CNV_OM_PRESEL300 - Error when scheduling preselection tasks.

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 300

• Message text: Error when scheduling preselection tasks.

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_PRESEL300 - Error when scheduling preselection tasks. ?

  The SAP error message CNV_OM_PRESEL300 typically occurs during the scheduling of preselection tasks in the context of data migration or conversion projects, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error can arise due to various reasons, and understanding the cause is essential for resolving it.
  Causes of CNV_OM_PRESEL300 Error
  
  
  Missing or Incomplete Configuration: The preselection task may not be properly configured, or required settings may be missing in the migration project.
  
  
  Data Issues: There may be inconsistencies or issues with the data being processed, such as missing mandatory fields or incorrect data formats.
  
  
  Authorization Issues: The user executing the task may not have the necessary authorizations to perform the preselection.
  
  
  Technical Issues: There could be underlying technical issues, such as problems with the database, system performance, or connectivity issues.
  
  
  Version Compatibility: The error may arise if there are compatibility issues between the SAP version being used and the migration tools or methods.
  
  
  Solutions to CNV_OM_PRESEL300 Error
  
  
  Check Configuration: Review the configuration settings for the preselection task. Ensure that all required parameters are set correctly.
  
  
  Data Validation: Validate the data being processed. Check for any missing or incorrect entries that could lead to the error. Use data cleansing techniques if necessary.
  
  
  User Authorizations: Verify that the user has the appropriate authorizations to execute the preselection task. If not, adjust the user roles and permissions accordingly.
  
  
  System Logs: Check the system logs for any additional error messages or warnings that could provide more context about the issue.
  
  
  Technical Support: If the issue persists, consider reaching out to SAP support or consulting the SAP community for further assistance. They may provide patches or updates that address the issue.
  
  
  Review Documentation: Consult the official SAP documentation related to the migration cockpit or the specific tools being used. There may be known issues or additional troubleshooting steps outlined.
  
  
  Testing in a Sandbox: If possible, replicate the issue in a sandbox environment to test different configurations or data sets without affecting the production system.
  
  
  Related Information
  
  SAP Notes: Check for relevant SAP Notes that may address this specific error or provide guidance on similar issues.
  Migration Cockpit Documentation: Review the official SAP documentation for the Migration Cockpit, which may provide insights into common errors and their resolutions.
  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 identify the cause of the CNV_OM_PRESEL300 error and implement an appropriate solution.