Message type: E = Error
Message class:  /PRA/EF -  
Message number: 042
Message text: Please Select a Line form the ALV List to Copy
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The SAP error message /PRA/EF042: Please Select a Line from the ALV List to Copy typically occurs in the context of an ALV (ABAP List Viewer) report where the user is trying to perform an action that requires a selection from the displayed list, such as copying data or performing a specific operation on a selected line.
Cause: No Selection Made: The most common cause of this error is that the user has not selected any line from the ALV list before attempting to execute the copy action. Multiple Selections: In some cases, the action may require a single selection, and if multiple lines are selected, it may trigger this error. ALV Configuration: There might be issues with the ALV configuration or the way the report is designed, which could prevent proper selection handling.
Solution: Select a Line: Ensure that you have selected a line from the ALV list. Click on the desired row to highlight
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