How To Fix CNV_OM_PRESEL171 - The following tasks have been selected to be aborted

CNV_OM_PRESEL171 - Overview

• Message type: E = Error

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

• Message number: 171

• Message text: The following tasks have been selected to be aborted

What causes this issue?

A job scheduled by the OBT preselection may process several preselection
tasks. If a task has been selected to be aborted 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_PRESEL171 - Details

• The SAP error message CNV_OM_PRESEL171 typically occurs during the execution of a conversion or migration process, particularly in the context of SAP's data migration tools, such as the SAP S/4HANA Migration Cockpit or other conversion tools. This error indicates that certain tasks have been selected to be aborted, which can happen for various reasons.
  Causes:
  
  Data Validation Issues: The data being processed may not meet the required validation criteria, leading to the abortion of specific tasks.
  Configuration Errors: Incorrect configuration settings in the migration or conversion tool can lead to task failures.
  Missing Dependencies: If certain prerequisite tasks or data are missing, the system may abort subsequent tasks.
  Technical Errors: There may be underlying technical issues, such as database constraints or system performance problems.
  User Intervention: Sometimes, users may manually select tasks to be aborted due to errors or warnings encountered during the process.
  
  Solutions:
  
  Review Logs: Check the detailed logs for the migration or conversion process to