FIELD: information technology.
SUBSTANCE: unit contains: a central server and local servers, connected to the central server, with the central server or local servers containing a reference electronic product list, device for generating one or more user codes, device for online registration of purchased products. Local server comprises of a processor adapted to benchmark the reference electronic product list of the promotion action with the first electronic product list, purchased by the user, to create a second electronic list of purchased products. And the local server is able to send the second list to the Central Server, which is adapted to verify the possible achievement of the reference values for each user that is associated with the user's code.
EFFECT: expansion of processing tools for a purchase.
3 cl, 6 dwg
