Microsoft Exchange Server 2016 PowerShell Cookbook - Fourth Edition

There's more...

If you don't want to modify the existing role assignment policy, you can create a new role assignment policy that can be applied to individual users. This may be useful if you need to test things without affecting other users. To do this, use the New-RoleAssignmentPolicy cmdlet and specify a name for the policy and all the roles that should be applied via this role assignment policy:

    New-RoleAssignmentPolicy -Name MyCustomPolicy '
    -Roles MyDistributionGroupMembership, '
    MyBaseOptions, MyTeamMailboxes, MyTextMessaging, '
    MyVoiceMail, MyContactInfo  

Once this is complete, you can assign the role assignment policy to an individual user with the Set-Mailbox cmdlet:

    Set-Mailbox "Ramon Shaffer" '
    -RoleAssignmentPolicy MyCustomPolicy ...