The customer Service and Sales Administrator BE supports the commercial activities for different international markets by managing customer orders, sales administration, forecasting input, contract and tender follow-up, and daily coordination with customers and internal departments. This role combines customer service, sales support, order administration and operational coordination. The position ensures accurate and timely order processing, reliable commercial data in the ERP system, and smooth communication with sales, finance, supply chain, factory and expedition. Check products, quantities, requested delivery dates, prices and commercial conditions before order entry. Inform customers and sales colleagues proactively about delays, shortages or order changes. Maintain and update prices, contracts, customer information and other commercial data in the system. Enter sales forecasts in the system based on input from the sales team. Compare forecast figures with actual sales and update forecast orders where needed. Support contract reviews and prepare offers together with the sales department. Manage customer and commercial documentation in a structured and accurate way. Follow up prepayments, invoice issues and proforma invoices with Finance and Sales. Maintain customer master data and ensure administrative accuracy. Prepare sales reports and analyses, including forecast versus actual sales follow-up. Coordinate small courier shipments and urgent customer delivery requests. Bachelor degree or equivalent through experience. Previous experience in customer service, sales administration, order management or commercial support. Good command of Microsoft Office, especially Excel. Strong commercial awareness and understanding of customer and business needs. Fluent in Dutch and English; French is a strong asset.