A method for use in an access and mobility function entity controlling a communication of at least one user equipment in a communication network via at least one base station, the method comprising receiving and processing an event exposure subscription for events related to the at least one user equipment, wherein the event exposure subscription indicates a subscription permanent identifier of the at least one user equipment, determining the base station to which the user equipment determined by means of the subscription permanent identifier in the event exposure subscription has established a communication connection, in connection with determining the base station to which the at least one user equipment in question has established a communication connection, mapping the subscription permanent identifier of the at least one user equipment indicated in the event exposure subscription to a temporary identification of the at least one user equipment used on an interface with the base station, and forwarding a modified event exposure subscription for events related to the at least one user equipment to the at least one base station being determined for the at least one user equipment, wherein the modified event exposure subscription indicates the temporary identification of the at least one user equipment used on the interface with the base station and wherein the event exposure subscription and the modified event exposure subscription comprise an event identification and a notification target address information related to a service consumer network element or function having initiated the event exposure subscription, and a notification correlation identification allocated to the event exposure subscription. receiving and processing an event exposure subscription for events related to the at least one user equipment, wherein the event exposure subscription indicates a subscription permanent identifier of the at least one user equipment, determining the base station to which the user equipment determined by means of the subscription permanent identifier in the event exposure subscription has established a communication connection, in connection with determining the base station to which the at least one user equipment in question has established a communication connection, mapping the subscription permanent identifier of the at least one user equipment indicated in the event exposure subscription to a temporary identification of the at least one user equipment used on an interface with the base station, and forwarding a modified event exposure subscription for events related to the at least one user equipment to the at least one base station being determined for the at least one user equipment, wherein the modified event exposure subscription indicates the temporary identification of the at least one user equipment used on the interface with the base station and wherein the event exposure subscription and the modified event exposure subscription comprise an event identification and a notification target address information related to a service consumer network element or function having initiated the event exposure subscription, and a notification correlation identification allocated to the event exposure subscription.