Companies and business units
Shown as one tree, because a business unit always belongs to a company. Company and
Business unit are two separate buttons rather than one menu, since there are only ever the two.
A business unit can’t be added until at least one company exists — the button says so rather than
just not offering it.
Cost centres and departments
Each shows how much depends on it — departments under a cost centre, staff and assets under a
department — so deactivating one says what it would take with it.
Projects
What work and spend is grouped under when a cost centre is too coarse — a shutdown, a plant expansion, a customer job. A project carries a status, a start and end date, a budget, and whether it’s billable. A booking can be charged to a project, and capital spend accumulates against one until it’s capitalised — see depreciation.Where this gets used
A single-plant operation can leave most of this alone. A group running several legal entities in different currencies needs it, because that’s what makes cost roll up correctly. The sites register links here directly, because the moment you need a business unit is the moment you’re filling in a site that has none.Location types
The other configuration a site links out to — the vocabulary its location tree is built from.

