​As your business grows, it is important for you to have a card that is scalable and flexible for your company so that it can continue to meet your purchasing and expense tracking needs. Procurement cards that are given to individual employees to make purchases may no longer be enough. Instead, you may want to have card numbers that are assigned to individual departments within your company that can let you track your business expenses by department. One solution for companies that are growing larger is a ghost credit card.