Search for the contact using the search field at the top of the page or the search option in the contacts module. See also Search for contact.
Try different search criteria such as name, mailing address, e-mail address, phone number....
Note: Sometimes the contact may already exist in Mip, but with an old touchpoint. Or there is a slight difference in spelling of the name. So be sure to search by name or touchpoint only as well. If you can't find the contact in any way, you can always create a new one via MyMip and add the necessary contact information.