The present invention provides a method and associated system. A computing device determines that a mobile application has been downloaded onto a first primary portable communication device of a user, wherein paired devices are the first primary portable communication device paired to a secondary portable communication device. The computing device receives an acknowledgment by the user of a notification enabled by the mobile application, the notification being received by the first primary portable communication device and shared with the secondary portable communication device, wherein the acknowledgment includes device identifications of the paired devices. The computing device stores, into a memory of the computing device and in response to the acknowledgment, the device identifications of the paired devices.