Abstract: An automated system to receive requirements of users and present them competitive products and services for selection, authorization, order placement, supplier invoicing and payment, all through a single system. The system brings together a number of tools to deliver the functionalities required to select most appropriate products and services from a plurality of supplier databases and may also incorporate user inputs as required. The system enables cost savings, manages suppliers, reduces costs of ownership, enhances catalog management, optimizes suppliers, enhances buyer experience and obtains legally compliant agreements with suppliers.