The present subject matter relates to verifying functionality restrictions of a computing device. In an example implementation, the verification includes generating a notification message based on a verification code received in the computing device and status of a configuration mode in the computing device. When the status of the configuration mode is active, at least one functionality of the computing device is restricted. The configuration mode can be activated in the computing device by execution of a configuration file. The generated notification message is provided, which enables verifying that the at least one functionality of the computing device is restricted.