Close
When the sales order line related to an EUS is processed completely or closed, the EUS
    status can be set to Closed using the  option. 
	 The existing links to documents, licenses and declarations are retained. However, an EUS with
      Closed status cannot be linked to another document line. 
  Note: 
        
- You cannot close an EUS if no documents are linked.
 - When the status of an EUS is set to Closed, the status of the related EUDs is also set to Closed, because the EUD is directly related to the EUS.