In your company file, you can have customers, vendors, employees or personal contacts with the same name. If you enter ID numbers for your contacts, though, each contact must have a unique ID number.
Using the Duplicate Records field of the Import File window, you can select how you want to handle duplicate records.
If you choose Identify Records by Card ID or Record ID, when you import cards, you can either update existing cards with data from imported records that have the same Card ID, or you can reject the duplicate cards. The action taken depends upon your selection in the Duplicate Records field of the Import File window.
If you choose Identify Records by Card Co./Last Name,when you import cards, you have three choices. You can: