This cmdlet is available only in on-premises Exchange Server 2016.
In this case your global address book will update each time Send/Receive is pressed. There are a lot of resources to help you become familiar with Office 365.
In Exchange 2010 it takes even longer to synchronize the changes in the OAB than Exchange 2007.
After the OAB is updated, which by default is once a day, it may take up to 8hrs for the OAB to be available to the client.
For information about the parameter sets in the Syntax section below, see Syntax.
You need to be assigned permissions before you can run this cmdlet.