Message type: E = Error
Message class:  CNV_PE_S4 - Messages for Posting Engine S/4 Content 
Message number: 019
Message text: Select at least one row
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The SAP error message CNV_PE_S4019 with the description "Select at least one row" typically occurs during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error indicates that the user has not selected any rows in a table or list where at least one selection is required to proceed with the operation.
Cause: No Selection Made: The most common cause is that the user has not selected any rows from a list or table that requires at least one entry to be processed. Filter Settings: Sometimes, filters applied to the data may result in no visible rows, leading to the inability to select any. User Interface Issue: There may be a glitch or issue in the user interface that prevents the selection of rows.
Solution: Select Rows: Ensure that you select at least one row from the list or table before proceeding. This is often done by clicking
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