This post is dedicated to taking you through the various ways, processes, and procedures how to clean your MacBook Pro or Air, iMac or Mac mini from duplicate contacts. They may appear due to mistakenly entering contact details, or updating your contact backup list, or contact changing his or her name, phone number, email address, etc. Duplicate contact entries are almost always found no matter what, making your address book messy.
Using the Contacts app on your Mac has a lot of benefits, but with them comes the challenge of duplicate contacts that can as well cause a lot of chaos and eventually affect your user experience adversely.
