How To Fix CNV_OM_PRESEL142 - The following tasks and their successors have been selected to be started

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 142

• Message text: The following tasks and their successors have been selected to be started

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_PRESEL142 - The following tasks and their successors have been selected to be started ?

  The SAP error message CNV_OM_PRESEL142 typically occurs during the execution of a conversion or migration project, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error indicates that there are tasks that have been selected to be started, but there may be issues with their dependencies or prerequisites.
  Cause:
  
  Task Dependencies: The error often arises when there are tasks that depend on the completion of other tasks that have not yet been executed or are not in a suitable state to be started.
  Selection Issues: It may also occur if the tasks selected for execution are not compatible with the current state of the system or the data being processed.
  Configuration Problems: Incorrect configuration settings in the migration cockpit or the conversion project can lead to this error.
  Data Issues: There may be issues with the data that is being processed, such as missing or inconsistent data that prevents the tasks from being executed.
  
  Solution:
  
  Check Task Dependencies: Review the tasks that have been selected and ensure that all prerequisite tasks have been completed successfully. You may need to execute those tasks first before proceeding.
  Review Configuration: Ensure that the configuration settings for the migration or conversion project are correct. This includes checking the settings in the Migration Cockpit or any related tools.
  Data Validation: Validate the data that is being processed to ensure there are no inconsistencies or missing information. Address any data issues before attempting to start the tasks again.
  Log Analysis: Check the logs for more detailed error messages or warnings that can provide additional context on why the tasks cannot be started.
  Consult Documentation: Refer to the official SAP documentation for the specific migration or conversion project you are working on. There may be specific guidelines or troubleshooting steps provided.
  SAP Support: If the issue persists, consider reaching out to SAP Support for assistance. They can provide more tailored guidance based on your specific system configuration and the context of the error.
  
  Related Information:
  
  SAP Notes: Look for relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Community Forums: Engage with the SAP Community or forums where other users may have encountered similar issues and can share their solutions.
  Training and Documentation: Ensure that you and your team are familiar with the migration tools and processes, as proper training can help prevent such issues.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.