A physical location is a site (an area, a structure or group of structures) or an area within a site where something was, is or will be located.
A physical location must be allocated its own GLN when its access address is different from other physical locations and there is a business need to identify the physical location across organisations.
A physical location within another physical location may get its own GLN (e.g. vending machine within a store, shelf in a warehouse).
Information associated with a physical location GLN will include the related legal entity and may include the contact details (visiting address, email address, phone number, etc.), location purpose (e.g. warehouse, office), operating hours, etc.
Trading partners need to distinguish a physical location from other physical locations.