The ability to make an individual offer to the customer consisting of products available, unavailable and those that are not in general sale. This provides an opportunity to check whether there will be demand for a potentially marketed product. Offers can be presented to customers via mailings, in the form of automatically generated pdf files, and in person at their location by sales representatives (via mobile app). The offer in pdf can be individualized in terms of graphics and sent to the customer with the possibility of negotiation by the system, which will allow the calculation of the imposed profit from the offer, the volume of sales. This functionality will allow you to maintain the continuity of sales negotiations in one thread and control the profitability of a given transaction