According to the PMBOK Guide, the communications management plan is a component of the project management plan that describes how project communications will be planned, structured, implemented, and monitored for effectiveness. It includes information such as the communication requirements, methods, formats, frequency, roles, and responsibilities of the project stakeholders. When a company's new communication system introduces online dashboard reporting, this is a change that affects the communication methods and formats of the project. Therefore, the project manager should update the communications management plan to reflect this change and ensure that the project communications are aligned with the new system and the stakeholder expectations. Updating the communications management plan will also help the project manager to identify and address any potential risks, issues, or challenges that may arise from the change, such as compatibility, security, or training needs. References: PMBOK Guide, Tools for managing projects : digital dashboards to report performance