As a purchasing assistant, you buy products for your company to sell or use in operations. Your job duties entail communicating with vendors to obtain goods at the best prices, tracking product inventory, monitoring sales trends, and placing orders on products. Purchasing assistants often play a role in choosing which products to stock. The career requires you have some formal qualifications and education, generally a bachelor’s degree in business or a related field, excellent computer skills, and prior sales experience. It is necessary to develop knowledge of your specific industry, including normal sales and revenue trends.