Operating costs and suppliers

Revenue is only half of it. Costs have to be recorded too, or there's no telling whether you made anything.

Operating costs

Billing → Operating Costs records spending outside the billing chain: fuel, wages, overheads, and supplier charges.

Add cost records one; the list shows Date and Category. Cost records can be deleted.

These feed the cost side of Profit & Loss.

:::tip Use the category The category is the only handle later analysis has. Put everything in "miscellaneous" and the report can tell you money left, but not where it went. :::

Suppliers

Billing → Suppliers manages the cost side's suppliers and their quotes, in two tabs:

Tab	Contents
Suppliers	The supplier list
Quotes	Period-scoped quotes — one supplier's price over a given span

Quotes carry a time range. When a supplier raises prices, don't edit the old quote — add a new one for the new period, so historical costs stay accurate.

Suppliers and quotes can both be deleted, with a confirmation.

Suppliers vs subcontractors

	Subcontractors	Suppliers
Relationship	You hand them transport work	You buy from them
Where	Partners menu	Billing menu
They produce	Ownership of deliveries and waybills	Cost records