To enable the iOS MDM device user to add events of shared calendars (such as the corporate calendar) to the user's calendar, add subscription to this calendar. Shared calendars are calendars of other users who have a CalDAV account, iCal calendars, and other openly published calendars.
To add calendar subscription:
In the console tree, in the Managed devices folder, select the administration group to which the iOS MDM devices belong.
In the workspace of the group, select the Policies tab.
Open the policy properties window by double-clicking any column.
Complete the following steps within 15 minutes. Otherwise, you may face an error when saving changes to the policy.
In the policy Properties window, select the Calendar subscription section.
Click the Add button in the Calendar subscriptions section.
The Calendar Subscription window opens.
In the Description field, enter a description of the calendar subscription.
In the Server web address (cannot be left blank) field, specify the URL of the third-party calendar.
In this field, you can enter the mail URL of the CalDAV account of the user to whose calendar you are subscribing. You can also specify the URL of an iCal calendar or a different openly published calendar.
In the User name field, enter the user account name for authentication on the server of the third-party calendar.
In the Password field, enter the calendar subscription password for authentication on the server of the third-party calendar.
To use the SSL (Secure Sockets Layer) data transport protocol to secure the transmission of event data between the CalDAV server and the mobile device, select the Use SSL connection check box.
Click OK.
The new calendar subscription appears in the list.
Click the Apply button to save the changes you have made.
As a result, once the policy is applied, events from shared calendar on the list will be added to the calendar on the user's mobile device.