Message type: E = Error
Message class:  CNV_OM_PRESEL - Messages for LT Object Based Preselection 
Message number: 030
Message text: &1 - &2: &3
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.
Unfortunately, there isn't any extra information in this error notice.
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The SAP error message CNV_OM_PRESEL030 typically relates to issues encountered during the data migration process, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error message is part of the conversion or migration process and indicates that there is a problem with the pre-selection of data.
Cause: The error message CNV_OM_PRESEL030 usually indicates that there is an issue with the data being processed. The placeholders (&1, &2, &3) in the error message typically represent specific details about the error, such as: &1: The name of the object or entity that is causing the issue. &2: The specific type of error or issue encountered. &3: Additional information or context about the error. Common causes for this error can include: Data Inconsistencies: There may be inconsistencies or missing data in the source system that prevent successful migration.
Configuration Issues: Incorrect configuration settings in the migration cockpit or related tools. Mapping Errors: Issues with the mapping of fields between
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