What distinguishes the B2B system from other systems to support online activities? Its significant feature is that it is distinguished from the B2C system, which is more popular and often easier to implement. However, most of all the B2B platform, unlike other serving retail clients, has the ability to service several hundred customers who regularly make high-value orders for specific goods. Although this type of transaction is less than in the B2C store, the orders are much higher. For this reason, the specificity of sales in the B2B sector requires a suitable tool adapted to its character. So what should the best B2B system look like and what should it be like?