Dispensing system and method of operating a dispensing system

A method for operating a dispensing system (1) with at least one container (2) having a container opening (6) and a dispense head (4) mounted on a robot arm (11) of a robot (10), wherein the dispense head (4) is automatically connected to the container opening (6) of the container (2) by means of the robot (10), such that liquid (3) can be removed from the container (2) or liquid (3) can be supplied to the container (2), characterized in that forces acting on the dispense head (4) when the dispense head (4) is inserted into the container opening (6) are detected by means of an arrangement of force sensors (14), and in that the robot arm (11) carries out compensation movements dependent upon the detected forces, whereby the dispense head (4) is aligned to the container opening (6), wherein axes of the robot arm (11) are released for carrying out compensation movements, and wherein a measurement head is connected to a connection flange (13) of the robot arm (11), said measurement head reading out a code from an RFID chip (9), thereby uniquely identifying the container (2).