Add or remove contacts from a group in Contacts on Mac
You can add or remove contacts in a group. Removing a contact from a group doesn’t delete the contact.
Add contacts to a group
In the Contacts app
on your Mac, select contacts.Drag the selected contacts to a group in the sidebar.
If the contacts don’t go into the group, check the group — you can’t add contacts to a Smart Group.
If you use an Exchange account in Contacts, those contacts can belong to only one folder at a time. Any contacts that aren’t in a folder you create are in the default Exchange Contacts folder.
Remove contacts from a group
In the Contacts app
on your Mac, select the group in the sidebar, then select the contacts you want to remove from the group.Press the Delete key on your keyboard.
Click Remove from Group.
You can’t directly add contacts to or remove them from a Smart Group — you must change the criteria of the Smart Group to change who is included in the group. See Create Smart Groups.