We have clean-up functionality to various job elements aimed at keeping surplus job information to a minimum whilst saving space on your system.
These updates primarily control the expiration of baskets, saved baskets and saved projects, and have been placed in a new Storage Control section of your Order Settings along with some existing related settings.

To support these warning settings above, there are email templates: 
These settings ensure you do not get a backlog of defunct data on your Storefront, by ensuring a timely clean-up.