A pump actuating cap for a pump dispenser, the cap comprising: a housing having a top base, a lateral wall, an open bottom base, and a nozzle for the output of a product to be dispensed, and wherein the housing is configured to be coupled with a pump through the open bottom base, to operate the pump, the pump actuating cap further comprising: an electronic circuit, at least one antenna connected with the electronic circuit, and at least one electric pulse generator connected with the electronic circuit, and wherein the circuit, the antenna and the electric pulse generator are enclosed inside the housing, wherein the electric pulse generator is arranged to be actuated through the open bottom base of the housing, by contacting with a pump when the housing is operatively coupled with a pump, wherein the electronic circuit has stored an unique identification code usable to identify the pump actuating cap, and wherein the electronic circuit is adapted for counting the number of pulses generated by the electric pulse generator, and to generate a signal containing the dispenser unique identification code and a pump session activation code containing information relative to the number of counted pulses, and to transmit the signal by means of the antenna, wherein the pump actuating cap further comprises a power source connected to the electronic circuit, and wherein the electric pulse generator is a push-button switch having an actuating pin, and wherein the housing has a tubular sleeve having an axis which is fluidly communicated with the nozzle and adapted to be coupled with an output tube of a pump, and wherein the power source includes at least one battery or supercapacitors, characterized in that, the pump actuating cap further comprising a bottom cover placed inside the housing and fixed to the housing, wherein the housing has a chamber formed internally between the top base, the lateral wall and the bottom cover, and wherein the electronic circuit and the battery or supercapacitors are enclosed inside the chamber, and wherein the bottom cover has an opening and the push-button switch is arranged in such a way that the actuating pin extends outside the chamber through the opening or wherein the actuating pin is displaceable inside the chamber and it is arranged to be accessible through the opening for its activation. a housing having a top base, a lateral wall, an open bottom base, and a nozzle for the output of a product to be dispensed, and wherein the housing is configured to be coupled with a pump through the open bottom base, to operate the pump, the pump actuating cap further comprising: an electronic circuit, at least one antenna connected with the electronic circuit, and at least one electric pulse generator connected with the electronic circuit, and wherein the circuit, the antenna and the electric pulse generator are enclosed inside the housing, wherein the electric pulse generator is arranged to be actuated through the open bottom base of the housing, by contacting with a pump when the housing is operatively coupled with a pump, wherein the electronic circuit has stored an unique identification code usable to identify the pump actuating cap, and wherein the electronic circuit is adapted for counting the number of pulses generated by the electric pulse generator, and to generate a signal containing the dispenser unique identification code and a pump session activation code containing information relative to the number of counted pulses, and to transmit the signal by means of the antenna, wherein the pump actuating cap further comprises a power source connected to the electronic circuit, and wherein the electric pulse generator is a push-button switch having an actuating pin, and wherein the housing has a tubular sleeve having an axis which is fluidly communicated with the nozzle and adapted to be coupled with an output tube of a pump, and wherein the power source includes at least one battery or supercapacitors, characterized in that, the pump actuating cap further comprising a bottom cover placed inside the housing and fixed to the housing, wherein the housing has a chamber formed internally between the top base, the lateral wall and the bottom cover, and wherein the electronic circuit and the battery or supercapacitors are enclosed inside the chamber, and wherein the bottom cover has an opening and the push-button switch is arranged in such a way that the actuating pin extends outside the chamber through the opening or wherein the actuating pin is displaceable inside the chamber and it is arranged to be accessible through the opening for its activation.