The present invention relates to two methods, an apparatus and to a Service Capability Server (SCS) for controlling interactions between a network and a third party service. The SCS comprises capabilities for receiving a trigger request for at least one event from the third party service. The SCS is also capable of communicating with an apparatus in the network to add a trigger in a trigger table of the apparatus and capable of receiving a notification from the trigger table of an occurrence of the at least one event. The notification comprises the third party service reference, the reference to the at least one event and a reference to at least one user registered to the third party service within the network. The SCS is further capable of informing the third party service of the received notification of the occurrence of the at least one event.