The project manager should share the updated project management plan with the key resource, as it contains the information about the project purpose and alignment with the organization's strategy. The project management plan is the primary source of guidance for the project team and stakeholders, and it integrates all the subsidiary plans and baselines, such as the benefits management plan, the scope management plan, and the communications management plan. By sharing the updated project management plan, the project manager can ensure that the key resource understands the project objectives, scope, benefits, risks, assumptions, and constraints, as well as the communication channels and methods for the project. References: (Professional in Business Analysis Reference Materials source and documents)
* PMBOK Guide, 6th edition, section 4.2.3.1, page 89
* PMP Exam Prep, 10th edition, Rita Mulcahy, page 78
* PMP Practice Questions #58 - iZenBridge1