As information networks might support us? It is a problem long asked myself by organisation owners. They are associated with large costs, but either has got a very high return on what we put in it. Nevertheless, for that to happen, the setup need to first be properly implemented. Comarch ERP Optima addition to the stadard work of management, makes possible the action to external data (as well as on the inside, but that is not needed on the analyzed stock - it hapens in the based storage), as well as introduce discount setups for our goods.