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 |
|---|---|---|---|---|---|---|
| INV000000436 | Paid | 05/01/2026 | 05/31/2026 | 05/01/2026 – 05/31/2026 | $4,400.00 | $0.00 |
| INV000000437 | Paid | 06/01/2026 | 07/01/2026 | 06/01/2026 – 06/30/2026 | $4,400.00 | $0.00 |
| INV000000438 | Paid | 07/01/2026 | 07/31/2026 | 07/01/2026 – 07/31/2026 | $4,400.00 | $0.00 |
| INV000000439 | Paid | 08/01/2026 | 08/31/2026 | 08/01/2026 – 08/31/2026 | $4,400.00 | $0.00 |
| INV000000440 | Paid (Uncleared) | 09/01/2026 | 10/01/2026 | 09/01/2026 – 09/30/2026 | $4,400.00 | $0.00 |
| INV000000441 | Unpaid | 10/01/2026 | 10/31/2026 | 10/01/2026 – 10/31/2026 | $4,400.00 | $4,400.00 |