Message type: E = Error
Message class:  VW - Shipment Processing Output 
Message number: 542
Message text: Shipment & not selected (already displayed)
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The SAP error message VW542 "Shipment & not selected (already displayed)" typically occurs in the context of logistics and transportation management when trying to process a shipment that has already been displayed or processed in a previous transaction. This error can arise in various scenarios, such as when attempting to display or edit a shipment that is already open in another session or has been previously processed. Causes: Duplicate Access: The shipment is already being accessed in another session or by another user. Status of Shipment: The shipment may have a status that prevents further processing or editing. System Lock: The shipment might be locked due to ongoing processes or transactions. User Authorization: The user may not have the necessary permissions to access or modify the shipment. Solutions: Check for Open Sessions: Ensure that the shipment is not open in another session. Close any duplicate sessions that may be accessing the same shipment. Review Shipment Status: Check the
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