How To Fix CNV_OM_PRESEL170 - The following tasks have been selected for cancellation

CNV_OM_PRESEL170 - Overview

• Message type: E = Error

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

• Message number: 170

• Message text: The following tasks have been selected for cancellation

What causes this issue?

A job scheduled by the OBT preselection may process several preselection
tasks. If a task has been selected to request its cancellation then also
all tasks are affected which are handled by the job processing the
selected task.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

CNV_OM_PRESEL170 - Details

• The SAP error message CNV_OM_PRESEL170 typically occurs in the context of the SAP Conversion or Migration process, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error indicates that certain tasks have been selected for cancellation, which may be due to various reasons related to the migration process.
  Causes:
  
  Task Dependencies: The tasks that are being canceled may have dependencies on other tasks that are not completed or are in an inconsistent state.
  Data Issues: There may be issues with the data being processed, such as missing or inconsistent data that prevents the task from being completed successfully.
  Configuration Errors: Incorrect configuration settings in the migration cockpit or related tools can lead to tasks being marked for cancellation.
  User Intervention: A user may have manually selected tasks for cancellation due to errors or warnings encountered during the migration process.
  
  Solutions:
  
  Review Task Logs: Check the logs for the specific tasks that are marked for