This document discusses the roles of vendors and suppliers in export supply chains. It emphasizes that customer satisfaction is the biggest challenge and cannot be achieved by one person alone, but requires visible and invisible efforts from many players. Both vendors and suppliers play important invisible roles behind the scenes in ensuring quality products are delivered on time at a competitive price through tasks like sourcing materials, quality checks, packaging and documentation. The conclusion states that a company cannot be a successful exporter without also having successful vendors and suppliers.