The car was built using a variety of parts from other GM suppliers and manufacturers. Reicheld broadened the concept to include loyalty from employees, suppliers, distributors and shareholders. These methods seek for accounts, customers, suppliers, etc. Different varieties might not communicate correctly between equipment of different suppliers. The system has the capability to interface with equipment or services provided by other suppliers. Enterprises bought input from suppliers at negotiated contract prices. China and Mexico are the major suppliers. It is one of the largest automotive suppliers worldwide. He was also plagued by customer complaints and demands for payment from suppliers. The company credited these delays to issues with unspecified suppliers. This process may involve the user providing quotes from three separate suppliers. Walmart has been criticized for not providing adequate supervision of its foreign suppliers. His company was Processor Technology, one of the most successful Altair compatible board suppliers. The Arsenal bid it out to various component suppliers. Those algorithms are proprietary to individual suppliers.