Refers to the use of technology to obtain sales force information or service information in real time. This process involves the use of technology, usually in PDAs, handheld radios, tablets, or mobile phones to obtain data. The data obtained is immediately transferred to the final systems (Enterprise Resource Planning (ERP), Customer Relationship Management (CRM) or accounting systems) via Wi-Fi, 3G, satellite or GPS. ). This instantaneous access to information reduces time delays and helps avoid double-entry manual input errors and enhances sales force productivity. From the operational perspective, the availability of real-time field information makes it possible to establish delivery schedules, reduce inventory and monitor and control field workers. The biggest challenge in sales force automation is to develop a simple, user-friendly interface for mobile devices and to connect to the information capture site. The communication problem can be overcome by having a system that can keep the information obtained in the device cache and synchronize it later with the final systems (the standalone client). "Field Service is increasingly seen as an integral part of a unified customer strategy and it is improving over time as part of a special project and can also be considered as a service life cycle management or service resource planning and is an integral part of product-based business as it is For sales, marketing and customer support Another factor that makes field service the focus of many companies in North America and Europe is the aging of the workforce, the challenges facing the course of operations and the knowledge of customers for new employees, while reducing the actual number of sales staff or To maintain the same number. This makes efficiencies obtained by field service management systems and automation of mobile devices relieve head of tactics.