You may see in the interface the message that a SIM has been deviated from its Service Profile. It means that the settings of the SIM have been modified at SIM level, and that the values are not different from the Service Profile that was applied to it. This happens when a user has made changes to the services in the SIM's detailed page - in the Configured Services tab - instead of changing the Service Profile. It can also happen if a change was made through API calls - API changes do not take into account Service Profile, and can therefore deviate SIMs.