Each Deliverable has a category (artwork, writing, editing, etc.), and each category has multiple steps the Deliverable goes through as it progresses over the course of a project. (For example, an illustration may start as an "initial sketch" and end as a "final image.") You can learn how add and edit categories and steps here.

When a contractor first sends you a Deliverable file to review, that Deliverable is by default marked as the first step for its category (such as "initial sketch" or "rough draft"). When you review the file (or any subsequent files), you may click on any of the other steps to indicate that the Deliverable has moved on to that next step. (Note that while the contractor can see what step a Deliverable is on, only your organization can change what step it's on.)