Abstract: Techniques for managing notifications to be presented by user devices are described. In an example, a computer system associates a first user account with a user device and stores first data indicating that a notification about a communications session via a communications network system is prohibited. The computer system receives a request associated with the first user account for communications with another device via the communications network system. Based at least in part on the other device, the computer system generates second data indicating that the notification about the communications session is to be presented within a period of time of the communications session being requested. The computer system associates the first user account with the second data.