The upper limit of enterprise registration in the capital pool is usually due to the fact that the upper limit of the number of registered enterprises set by the system or policy of the capital pool is full and it is impossible to register new enterprises. Specifically, this is because there are already many enterprise users in the system of Capital Library, and the system sets the upper limit of the number of enterprises that each user can register. When this upper limit is reached, new enterprises can no longer register in the system.