What does Ticket status - Unsorted mean in Zendesk Explore metrics?
Ticket status attribute is designed to be sorted from newest to oldest (new, open, pending, on-hold, solved, closed). The Ticket status - Unsorted attribute is the same but is instead sorted in alphabetical order rather than chronological order (closed, new, on-hold, open, pending, solved).
Ticket status is for use within the Rows, Columns or Filters within Explore queries, while Ticket status - Unsorted is used in formula calculations.
For more information about metrics and attributes for Zendesk Support, see the article: Metrics and attributes for Zendesk Support.