...
In Print – Status of ACT, NYP (if preordering is enabled), or OS (if backordering is enabled)
Announceable – Announce date has been achieved
Buyable – Release date has been achieved or preorder date has been achieved (if preordering is enabled), and ebook is available (if applicable)
...
These checks are in addition to the visibility of the product, the format, and the product format.
...