By Lena / Last update February 24, 2020

iCloud provides an easy way to help users backup iPhone contacts, notes, photos, calendar, etc. As long as we turn on the syncing function, all data will be saved to iCloud and we can access and manage them on any device that logged in with the same Apple account. However, iCloud syncing issue happens now and then, it’s an unavoidable problem. Now you just find that iCloud contacts not syncing.

Why iCloud Contacts Not Syncing?

Various reasons can lead to the iCloud contacts not syncing problem and we cannot say for sure. The following are the main reasons.

◇ The iCloud server status is not good.

◇ The Internet connection is not stable.

◇ You’ve logged in with incorrect account.

◇ There is no enough iCloud storage space.

Sometimes the iOS upgrade can change some settings to the default so you find the iCloud not syncing contacts issue.

How to Fix iCloud Contacts Not Syncing?

No matter what causes the iCloud contacts not syncing issue, now fixing it in soon is the priority. Here in this part, I’ll list all the potential solutions that you can have a try to troubleshoot the problem.

Tip 1. Restart the Device

First, try to restart your device. You can always try this method when you meet any problem. You can also force reboot your iPhone.

Tip 2. Toggle Contacts Off & On

Go to have a check whether the contacts sync has been turned on. And also make sure you have signed in with the right iCloud account. Go to Settings > tap [your name] > iCloud or Settings > iCloud if you are using iOS 10.2 or earlier device.

Contacts Sync

Turn Contacts off/on to refresh the sync between your iPhone and iCloud. When you turn off Contacts Sync, please feel free to choose “Delete from My iPhone” on the pop-up window, your contacts are still in iCloud and you will not lose anything. Restart your iPhone and turn Contacts sync on.

Tip 3. Sign Out & In iCloud Account

The syncing errors on iCloud may lead to the iCloud contacts not syncing issue. You can first log out and then log in again to have a try. Go to Settings > tap [your name] > iCloud > scroll down and choose Sign Out > enter your password to confirm. Restart your iPhone and log in back.

Tip 4. Deselect Third-Party Accounts

You may meet the iCloud contacts not syncing problem if you have synced your contacts to third-party accounts like Google or Yahoo. In this case, you can deselect these third-party accounts and change the default account to iCloud.

Open Contacts app > tap on Groups in the top right corner > deselect all third-party accounts > select All iCloud > tap Done to confirm. Turn off your iPhone and turn it on again.

Tip 5. Set iCloud as the Default

Go to Settings > tap Contacts > tap Default Account > select iCloud.

Tip 6. Check Internet Connection

iCloud syncing needs a stable Internet connection. The iCloud not syncing contacts problem will occur due to the network connection error. No matter you are using Wi-Fi network or cellular data network, you should make sure your iPhone is connected. You can try to reset network connection to make it: go to Settings > General > Reset > Reset Network Settings. You need to re-connect Wi-Fi but it will not affect your data security.

Tip 7. Check iCloud Storage

The iCloud contacts not syncing error will happen if there is no enough storage space to store the data. Apple just offers 5GB free storage space for each user. If the iCloud storage is full, then you won’t be able to sync any data to iCloud. You can go to Settings > [your name] > iCloud to check your iCloud storage.

Tip 8. Update iOS Version

If your iPhone is not running with the latest iOS, you'd better update your iOS to the latest version. Apple continues to release new updates to resolve bugs and other issues. It may also help you fix the iCloud contacts not syncing issue. Make sure your device has connected with Wi-Fi > go to Settings > General > Software Update to make it.

After you have tried one or more solutions, to can go to Contacts app to have a check whether it works. Tap Group tab in the upper-left corner and swipe down the list to refresh your contacts.

Bonus Tip to Backup iPhone Contacts

Indeed it’s a good way to backup iPhone contacts with iCloud, however, iCloud only offers 5 GB free storage space for users to storage iOS data. Obviously, the limited storage space is far from enough. In this case, why not try another tool to help you backup contacts in an easy way?

One free backup tool named AOMEI MBackupper is recommended. It lets you backup all contacts in one-click or only the selected contacts as per your needs. It also supports backing up photos, videos, music, messages as you can see from the picture shown below.

Back Up All

After the backup, you can check the backup files freely. What’s more, if necessary, you can choose to restore the contacts back to device and it will not erase any existing data. Go for it now and discover more!


That’s all for how to fix the iCloud contacts not syncing problem. Hope one of the solutions can help you figure it out. If you have other questions about this issue, please feel free to leave a comment and we will reply to you as soon as possible.