Section 4 - Delete a Contact
You can delete contacts by viewing the details of a contact. At the top of that page is a row of three buttons that allow you to edit an contact, add a followup or delete an contact.

Delete a Contact Editor Manager Administrator

When you click on the Delete this Contact button you will be asked if you are sure you want to delete the contact. If you click OK, the contact and all followups will be deleted from SMS. If you click Cancel, the contact will not be deleted.