What is the hierarchy in ClickUp?

The ClickUp Hierarchy is the base of the entire platform. The Hierarchy provides an organized way to break work down into actionable items for your whole team to collaborate.

Workspace - everything happens here (the overarching "business" unit that holds everything else) - only have one per business. 

Spaces - high level categorizations (teams, departments, etc.).

Lists - group together related tasks (lists can also be further organized into folders).

Tasks and subtasks - where the work actually get's done and all of the task details, checklists, etc, are housed.