Through the "States" link on the Admin page, you can manage the different ticket states you want to use in the system (see Figure below).
Figure: State management.
After a default setup, there are some states defined:
closed successful
closed unsuccessful
merged
new
open
pending auto close+
pending auto close-
pending reminder
removed
Every state is linked to a type, which needs to be specified if a new state is created. By default the state types are:
closed
merged
new
open
pending auto
pending reminder
removed