If you need to limit the level of visibility, assign special rules for different groups of people, define managers and coordinate travel, then departments are what you need.
Departments are located in the section My company
Employees with certain access rights can create and edit departments, define their composition and assign rules.
Each employee can only be in one department at a time, and the same department head can be in several departments. At the same time, the travel policy that will be applied to employees of the department will be different. This provides more flexibility when creating acknowledgment schemes. Important! The travel policy and other rules do not apply to the head of the department.