OABs in Exchange 2013 and later are improved over OABs in Exchange 2010.
You can omit the parameter label Identity so that only the OAB name or GUID is supplied.
The What If switch simulates the actions of the command.
You can use this switch to view the changes that would occur without actually applying those changes.
To see the input types that this cmdlet accepts, see Cmdlet Input and Output Types (https://go.microsoft.com/fwlink/p/? If the Input Type field for a cmdlet is blank, the cmdlet doesn't accept input data.
For information about the parameter sets in the Syntax section below, see Exchange cmdlet syntax (https://technet.microsoft.com/library/bb123552.aspx).
You need to be assigned permissions before you can run this cmdlet.To see the return types, which are also known as output types, that this cmdlet accepts, see Cmdlet Input and Output Types (https://go.microsoft.com/fwlink/p/? If the Output Type field is blank, the cmdlet doesn't return data.In on-premises versions of Exchange, you could update address lists manually, as well as modifying the schedule through which they were updated.You can use this switch to run tasks programmatically where prompting for administrative input is inappropriate.You don't need to specify a value with this switch.By default, a new installation of Exchange creates an OAB named Default Offline Address Book on the server.