Task 1. Overall revenue plan in each forecast round, and feedback rolling revenue plan to customers. 2. Revenue monthly closing process, including revenue recognition, invoice issue, and revenue analysis etc. 3. Offer letter overall steering and service package pricing. 4. Coordinate overall shared service planning and actual spending analysis. 5. Overhead plan and actual spending analysis. 6. Project cost plan and actual spending analysis. 7. Internal and external audit support, documents preparation and clarification.