Communication is key to aligning your interim objectives with the client's expectations and needs. Communicate frequently, transparently, and constructively with your client and other relevant parties. Update them on your achievements, challenges, feedback, and recommendations, and listen to their concerns, questions, and suggestions. You need to address any issues or conflicts that may arise and seek their input and approval when needed. By communicating effectively, you can build trust, rapport, and collaboration with your client and stakeholders.