Message type: E = Error
Message class:  CNV20305 - Messages for conversion packages in CO 
Message number: 114
Message text: Select a row that you want to delete
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 CNV20305114, which states "Select a row that you want to delete," typically occurs in the context of data migration or data conversion processes, particularly when using SAP's tools for data transfer or transformation, such as the SAP S/4HANA Migration Cockpit or other data migration tools.
Cause: This error usually arises when a user attempts to delete a row in a table or a list where no row is currently selected. The system expects the user to select a specific row before performing the delete action. This can happen due to: No Row Selected: The user has not highlighted or selected any row in the interface. User Interface Issue: There may be a glitch in the user interface that prevents the selection from being registered. Permissions: The user may not have the necessary permissions to delete rows, although this is less common for this specific error message.
Solution: To resolve this error, you can
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