In effect: an invoice is paid or revenue sits in a closed period, so line items are read-only. Amend the contract to change them.
The invoice schedule: Unbilled invoices wait for their invoice date (send them, or let invoice automation send them).
| Invoice Number | Status | Invoice Date | Due Date | Billing period | Amount | Amount Due |
|---|---|---|---|---|---|---|
| INV000000332 | Paid | 10/01/2025 | 10/31/2025 | 07/01/2025 – 09/30/2025 | $110,250.00 | $0.00 |
| INV000000333 | Paid | 01/01/2026 | 01/31/2026 | 10/01/2025 – 12/31/2025 | $110,250.00 | $0.00 |
| INV000000334 | Paid | 04/01/2026 | 05/01/2026 | 01/01/2026 – 03/31/2026 | $110,250.00 | $0.00 |
| INV000000335 | Paid | 07/01/2026 | 07/31/2026 | 04/01/2026 – 06/30/2026 | $110,250.00 | $0.00 |
| INV000000336 | Unpaid | 10/01/2026 | 10/31/2026 | 07/01/2026 – 09/30/2026 | $110,250.00 | $110,250.00 |