Electronic device for managing controlled device and method of operating same

An electronic device comprising:

• a display;
• communication circuitry;
• memory storing one or more computer programs;
• and
• one or more processors communicatively coupled to the communication circuitry and the memory,
• wherein the one or more computer programs include computer-executable instructions that, when executed by the one or more processors individually or collectively, cause the electronic device to:
• acquire identification information of a controlled device by performing a nearby device scan,
• request confirm data of the controlled device corresponding to the identification information from a server through the communication circuitry,
• in case that the confirm data is not received from the server, perform a first registration procedure including operations for registering the controlled device in the server through the communication circuitry, and
• in case that the confirm data is received from the server, perform a second registration procedure including the remaining operations except for at least one operation for obtaining the confirm data from among operations included in the first registration procedure, wherein the at least one operation for obtaining the confirm data includes display, through the display, a screen configured to scan a verification indicia of the controlled device, wherein the second registration procedure is performed when a first request configured to re-registration for the controlled device is received through the electronic device, and wherein the confirm data is not broadcast by the controlled device and includes a full serial number of the controlled device.