Accounting Periods (CQ)
Accounting periods allow you to group accounting transactions together. Even if you are not using Projector's accounting integration you can use accounting periods to control when time and expense entry and adjustment are allowed.
Accounting periods are managed in Job Accounting | Accounting Periods.
When setting up Projector initially you do not need to create accounting periods. You can set them up later if and when you need to prevent time or expense entry and adjustment for past or future periods.