Start by assessing how the nature and magnitude of the unexpected changes affect your project's timelines, resources, priorities, and goals. The process of assessment helps support informed decision-making. Proactively communicate the changes and the reason for the changes to stakeholders and team members. Evaluate and adjust priorities after consulting with the relevant stakeholders. Discuss resource allocation and risk mitigation. Revise the project plan and update the team with the new project goals and timelines. Keep the lines of communication open to maintain full transparency throughout. Document all changes. Remember to allow room for flexibility in case of further unforeseen changes. Use the lessons learned to help you more effectively manage changes to project priorities in the future.