An application sales management server system that assists B2B online processing related to sales and distribution of applications while making use of a conventional business practice related to B2B is provided. A sales management server system operating in an edge server communicably connected to one or more edge devices is communicably connected to a terminal of an intermediary dealer that relays sales of applications and a terminal of an end user who uses the edge device and the edge server via a communication unit. A control unit includes: an ordering processing unit that notifies the terminal of a serial number corresponding to an application on the basis of an application purchase request from the terminal of the intermediary dealer; and a distribution processing unit that distributes an application corresponding to a serial number to the edge server in response to receiving the serial number transmitted from the terminal of the end user.