If Contacts on your iPhone are not syncing to iCloud, any changes that you make to the Contact list on iPhone won’t be saved to iCloud. You can find below the steps to fix this problem.
iPhone Contacts Not Saving to iCloud
When you provide the Contacts App on your iPhone with access to iCloud, it basically results in copy of your Contacts list being saved on Apple’s Cloud servers.
Once the Contacts App is provided with access to iCloud, any changes that you make to the Contacts List on iPhone get automatically saved or synced to iCloud.
While this syncing process works well most of the times, it can sometimes stop working due to connectivity issues, due to iCloud Contacts being accidentally switched OFF and other reasons.
1. Enable/Disable iCloud Contacts
The problem might be due an iCloud glitch, preventing iPhone Contacts from syncing to iClould.
Open Settings > tap on your Apple ID Name > iCloud > Show All > On the next screen, move the toggle next to Contacts to OFF position.
Note: If you are using an older version of iOS, go to Settings > General > iCloud > Switch OFF iCloud.
On the pop-up, select Keep on My iPhone option. After 30 seconds, enable iCloud Contacts back on your device by moving the toggle next to Contacts to ON position.
On the next pop-up, select the Merge option, which ensures that all your Contacts are saved to iCloud.
2. Sign Out of iCloud and Sign Back In
Sometimes, the problem is due to your Apple ID not being recognized by iCloud Servers. This can be fixed by signing out of Apple ID and signing back in.
Go to Settings > tap on your Apple ID Name > scroll down to the bottom of screen and tap on the Sign out option.
After 30 seconds and Sign back into your iCloud Account and see if the missing Contacts are back on your device.
3. Update iPhone
Go to Settings > General > Software Update > On the next screen, tap on Download and Install (If an iOS update is available).
Patiently wait for the iOS update to be download to your device. Once the download is complete, install the update by tapping on Install Now option.
Note: During installation of the Update, you will find iPhone turning OFF and restarting multiple times.
4. Reset Network Settings
Sometimes, the problem is due to change or corruption in Network Settings on your iPhone. This can be fixed by performing a Network Settings Reset.
Note: Before going ahead with this step, make sure that you note down your WiFi Network Password.
Go to Settings > General > Transfer or Reset iPhone > Reset > On the pop-up, select Reset Network Settings option.
On the confirmation pop-up, tap on the Reset Network Settings to confirm.
After iPhone restarts, join WiFi Ntwork by entering your WiFi Network Password and see if the problem is now fixed.