Growth · Part of Client Billing
Billing periods
A clean period lifecycle, open to locked to invoiced, with the current period auto-opened on each client's cycle. The container that keeps a billing month from drifting.

For the operator
Each client's billing cycle runs as a period that moves open to locked to invoiced; a worker opens the current period automatically per the configured cycle. Locking finalizes the ledger; the progression is one-way, so a locked period stays put. Finance works in periods rather than chasing date ranges in a spreadsheet.
Business impact
Billing that is not anchored to a clean period boundary drifts, and drift is where double-billed and missed hours come from. An auto-opened, one-directional period lifecycle gives finance a reliable close process and the confidence that a locked period will not change under an invoice, which is the foundation every downstream billing number depends on.