all my contacts have duplicates
How can I eliminate duplicates in Contacts in
iCloud and on my apple devices?
MacBook Air 13″, macOS 11.2
Question marked as
Top-ranking reply
If you have signed in with same Apple ID and password on the same network in Mac and iPhone or other apple devices the contacts on each device will get synced , if the same contacts are in devices they will be seen as duplicates ( as if you had already created contacts in Mac and the same are in iPhone ) .
To avoid it , disconnect the desired device by just signing out from Apple ID account , then delete the duplicate contacts in each device .
See the article https://support.apple.com/en-in/HT203565
When Apple ID is signed in Mac and application contact is turn as on https://support.apple.com/en-gb/guide/mac-help/mh36834/mac
If you select duplicate contacts from Mac and delete them , automatically they will be deleted from iCloud.com