iCloud Contacts not syncing on macOS Golden Gate 27.2

“On macOS Golden Gate 27.2, Contacts does not sync in either direction. A contact created on iCloud.com reaches my iPhone but not my Mac. Contacts stored under All iCloud on the Mac do not upload. Disabling and re-enabling iCloud Contacts and restarting did not resolve it. The Mac contains unsynced contacts that must be preserved.”

Posted on Nov 7, 2026 7:46 AM

5 replies

WheelieNick

Level 9 (74,110 points)

Nov 7, 2026 1:00 PM in response to sfb71

To fix iCloud Contacts failing to sync in either direction on macOS while preserving your local unsynced contacts, you need to back up your local database first, extract/export your local-only entries, and force a clean sync handshake

sfb71 Author

Level 1 (34 points)

Nov 9, 2026 4:04 AM in response to DuongHienVinh

I ended up in a long chat with Apple, who then referred me to a Service Advisor. After about 2 hours of testing and diagnosis, the problem was referred to the engineers, who are expected to get back to me in a few days. This may be a bug.

sfb71 Author

Level 1 (34 points)

Nov 9, 2026 4:04 AM in response to WheelieNick

Thanks for this suggestion. I ended up in a long chat with Apple, who then referred me to a Service Advisor. After about 2 hours of testing and diagnosis, they referred the problem to the engineers, who are expected to get back to me in a few days. This may be a bug.

MacrosTheBlack

Level 1 (14 points)

Nov 10, 2026 4:27 AM in response to sfb71

Having the same problem. Tried the usual suggestions turning off iCloud sync and back on etc. Not working. I have an old contact in the Mac and new contacts on iPhone that aren't synchronised to the Mac still.

Very annoying, surely must be an easy fix Apple engineers??

DuongHienVinh

Level 1 (12 points)

Nov 8, 2026 4:32 PM in response to sfb71

I had the same issue. I tried many ways but can’t fixed

Originally posted at discussions.apple.com/thread/256390327