Granting write permission for calendar sharing with OWA 2010

The calendar sharing feature introduced in Outlook Web App 2010 (OWA) allows a user to grant access to their calendar to another user.

To access the option, click on the Shareoption when in the Calendar and then on Share This Calendar. You’ll then be able to select the user(s) that you want to share your calendar with and define the level of information you want the recipient to be able to see in your calendar.

The recipients see a message as shown below. To access the calendar, they simply click on the Add This Calendar link. OWA will then add the calendar to the list of available calendars and the user can then access your calendar whenever they want by simply clicking on the calendar’s entry to instruct OWA to open it.

The user will be able to see your calendar but they won’t be able to add anything to it or make a change to an existing appointment. In short, they are restricted to “Reviewer” access. You can confirm this by clicking on the Change Sharing Permissionsoption in the Share menu, when you’ll see something like the screen shot shown below. In this case, just one other user has access to the calendar and all they have is Reviewer access, so it shouldn’t come as a surprise that they won’t be able to add or edit items in the calendar.
To set edit permission on Calendar

Set-MailboxFolderPermission -Identity alias:\Calendar -User UsertoGetRights -AccessRights Editor

For example, if my alias is “TRedmond” and I want to grant access to the user “Redmond, Eoin”, the command is:

Set-MailboxFolderPermission -Identity TRedmond:\Calendar -User ‘Redmond, Eoin’ -AccessRights Editor

How OWA displays a user with Editor permission

Once a user has been granted Editor permission, they can edit or add items to a calendar. Note the “Notify” checkbox. If set, the user who owns the calendar will receive an “Appointment Created Notification” as a new message in their inbox to provide them with details of the new event.

Creating a new appointment in another user’s calendar

Calendaring sharing is a nice feature of OWA 2010. It’s just a pity that the developers left out the ability to grant editor access to a calendar – but now you know how to do it behind the scenes!


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