At least one managed setting. Some settings, such as VPN, can have more than one payload. Use payloads to administer increased network security, user authentication, Wi-Fi authentication, VPN policy settings, mail settings, and more. You can use payload settings to build policies to restrict, for example, the use of Siri, FaceTime, or the installation of apps. You can also create payloads that include Wi-Fi authentication policies, so your users can instantly connect to Wi-Fi secure access points for fast Internet connectivity.