You can now hide an object if it contains no data. In previous versions you would see the "No data to display with the current selection of criteria" message, which by many end-users erronously has been perceived as an error.
The option is a Visibility option in the Properties Smartpad to 'Hide if empty result'.
A similar option is available also for objects tht works with 'Required criteria'.
Tip: You can design your dashboard in such a way that, as an object becomes hidden, another object, behind the first object, becomes visible to the end-user.