A project manager worked on a project proposal, which the organization approves. The project manager is working on the next deliverable to exit the current step.

While the project schedule is vital for tracking project timelines and deliverables, it is typically created after the project charter. The schedule requires detailed input regarding tasks, resources, and timelines, which can only be effectively developed once the project has been formally authorized and scoped through the charter.

The work breakdown structure (WBS) is an essential tool for breaking down project deliverables into manageable components. However, the WBS is generally developed after the project charter and is informed by the objectives and scope defined in that document. Thus, it is not the immediate next deliverable after proposal approval.

The project plan encompasses a comprehensive outline of how the project will be executed, monitored, and closed. However, similar to the WBS and project schedule, it is developed after the project charter has been established and approved, making it a subsequent step rather than the next immediate deliverable.