Method comprising receiving a request to start collection of management data for a geographical area; for each of one or more radio cells: checking whether the respective radio cell fulfills at least one of one or more criteria; determining one or more network functions serving the respective radio cell if the respective radio cell fulfills the at least one of the one or more criteria; triggering the determined one or more network functions to start collection of the management data for the respective radio cell; wherein each of the one or more criteria is only fulfilled if the respective radio cell is related to the geographical area.