If an item is addressed to the Group but not a specific Person:
If a person's name is not on the shipping label, then the Group Contact will receive a notification that an item has arrived. You can learn more about updating contact info for Group Contacts here.
If an item is not addressed to a Person or Group:
If neither a Person nor Group can be identified on the label, then the Operational Contact will receive an email notifying them that an item has arrived which contains no recipient information.