Abstract: The invention relates to a method for the dynamic control of functions of a modular transponder (90) for positioning objects, and a modular transponder (90) for this purpose. The modular transponder consists of a number of units (10, 20, 30, 40, 50, 60, 80) that can be connected to one another in different ways to obtain a variety of applications for the transponder (90). For a user of the transponder (90) to be able to change application without possessing detailed knowledge of programming, the transponder (90) is configured by alphanumeric symbols being sent via data or SMS messages.