Responsible for overall maintenance of customer demands/call offs accuracy in SAP systemResponsible for the mater data maintenance accuracy and check regularly. Continuously coordinate with sales, operations and customers to keep demand plan up to date at high complexity plant operations.To monitor plan fulfillment on daily basisCoordinate between customer and internal cross-function and support to fulfill customer demand.Analyze FG inventory levels and quality &drive cross functional inventory action plan.Identify long term and short-term marketing performance and proactivity of risky estimation of demand.Other tasks assigned by the Team leader or management.