A method for determining user configurations of services in a radio communication network is performed in a support system node, and includes ranking users of a service based on frequency of occurrences of user reconfiguration in the radio communication network, creating a linear regression model of user configuration for a plurality of users of the service in the radio communication network, identifying a user configuration per user of the service for a selected number of ranked users by fitting the selected number of ranked users in the linear regression model, in order to reduce user reconfiguration of the service, and providing the identified user configuration per user to the selected number of ranked users. A support system node, a computer program and a computer program for determining user configurations of services in a radio communication network are also presented.