The fitting has a cupboard body (13), and an inner area (20) accessible over a corner cupboard door (19). A tray (21) is guided in the area and movable between inner and outer positions, where the tray projects partially over a plane of a door opening of the cupboard. A moving-in device (46) is provided for supporting or automatic execution of a drawing-in movement directed from the outer to the inner position of the tray. A moving-out device is provided for supporting or automatic execution of a drawing-out movement directed from the inner to the outer position of the tray.
