Message type: E = Error
Message class:  CNV_OM - Messages for Objectbased Migration 
Message number: 048
Message text: Creating preselection task for collection &1
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The SAP error message CNV_OM048 typically occurs during the data migration process, particularly when using the SAP S/4HANA Migration Cockpit or other data migration tools. This error indicates that there is an issue with creating a preselection task for a specific collection, which is often related to the data being processed.
Cause: Data Inconsistencies: The data being migrated may have inconsistencies or issues that prevent the preselection task from being created.
Configuration Issues: There may be configuration problems in the migration cockpit or the source system that are causing the error. Missing Authorizations: The user executing the migration may not have the necessary authorizations to create the preselection task. Technical Issues: There could be underlying technical issues, such as database locks or system performance problems.
Solution: Check Data Quality: Review the data being migrated for any inconsistencies or errors. Ensure that all required fields are populated and that the data adheres to the expected formats. Review Configuration: Verify
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