Why doesn't my invoiced amount draw down my budget?
In Harvest, invoices don't affect project budgets in any way. Budgets are entered when creating or editing a project, then spent down by tracked time and certain expenses. There's no setting that will allow invoices to draw down a project's budget amount.
Instead, invoices draw down a project's Uninvoiced Amount. To learn more, check out our article on how invoices affect a project's Uninvoiced Amount.