It is better to choose the convenient date and time of an appointment to the state organizations on the State Services of Tatarstan or in the mobile application “Services of the Republic of Tatarstan”, before visiting a multifunctional centre, for example, for obtaining some services. The e-appointment to the centre not only saves time for users, but also serves as a kind of diary, reminding the user about the time of the visit using PUSH notifications to the phone.