The system prevents duplicate contacts by checking against the primary email and primary phone number on the contact. If an existing contact in your database has the same email or phone as a contact you are trying to manually add or import it will not be created.
The best way to avoid duplicate contacts is to ensure the contacts you input always include either a primary email or primary phone number or both.
You may find duplicate contacts if the contacts were put in without either the primary email or phone field filled out. If you ever find duplicate contacts, you will want to choose one as the contact card to work with and fully delete the extra one. You can copy over info to the main contact before archiving the extra one if needed.
- Learn how to archive, delete or restore Contacts, in Command.