Click on File in the Ribbon interface.
Click on Options in the sidebar.
When the Options screen opens, make sure you are on the Advanced tab by clicking on it.
Under the Send and Receive category (you may need to scroll down), click on the Send/Receive... button.
Make sure Schedule an...
Here is the proper way to do a Calendar Sharing in Outlook (Including How to delegate access properly)
File -> Account Settings -> Delegate Access -> Add (‘Person Name’) -> Calendar (Select desired access level)
On the other side, open up Calendar -> Open Shared Calendar -> Enter (‘Person...