Configuration is the second part in the mobile device management lifecycle, which includes configuring policies specific to the organization's standards as well as distributing apps based on the needs of the enterprise, while ensuring other unauthorized apps are not installed.
MDM offers a whole lot of device policies essential for data and device security as well as improving productivity. While you can configure stringent security policies for the former, remotely configuring basic settings on the device such as Wi-Fi, E-mail etc., as well as silently installing/updating all requisite corporate apps on the device ensures the devices are ready for corporate use when handed over to the employee and further prevents the device users from being bothered about device configurations as all of it can be modified over-the-air by the IT administrators. Refer this to know more about Profile Management
Besides profiles, MDM makes app management a breeze letting you have complete control over the entire lifecycle of the app, irrespective of whether it is a Store app, available for public download via the Internet or an in-house, developed specifically for your enterprise. Right from installing the app to updating it and then uninstalling it if need be, you can have complete control over an app installed on a managed device. Another advantage is that you can pre-configure the app settings as well as app permissions ensuring the user needn't do it manually and also prevents them from modifying the same. In case of paid apps, you can also manage app licenses right from the MDM server. Refer to this for more details about App Management
Further, MDM lets you cluster users with common criteria such as working in the same department etc., into groups. So, once you associate policies and/or apps to groups, all the devices present/added later to the group, will have these apps/policies associated silently without any admin/user intervention. Refer this to know more about groups here