In the production - distribution - delivery operations of a product or service, the supply chain plays an important role, since the quality and promptness with which supplies or materials are delivered to the company depend on their proper administration and management, so that the company is able to carry out the production cycle.Currently, although most companies are convinced of the importance of good supply management, few of them assign control activities to ensure optimal operations. It is at this point that it is necessary to know what the supply chain is, before implementing it in any business or company.