Message type: E = Error
Message class:  CNV_OM_PRESEL - Messages for LT Object Based Preselection 
Message number: 017
Message text: Error during task selection
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.
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The SAP error message CNV_OM_PRESEL017 typically occurs during the task selection phase in a data migration or conversion process, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error indicates that there was an issue with the selection of tasks, which can be caused by various factors. Possible Causes:
Configuration Issues: Incorrect or incomplete configuration settings in the migration cockpit or the source system. Data Inconsistencies: Inconsistencies or errors in the data being migrated, such as missing mandatory fields or invalid data formats. Authorization Problems: The user executing the migration may not have the necessary authorizations to perform the task. Technical Errors: Issues with the underlying database or application layer, such as connectivity problems or system performance issues. Version Compatibility: The version of the source system may not be compatible with the target system or the migration tool being used. Solutions: Check Configuration: Review the configuration settings in the migration cockpit to ensure they are
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