Contacts not synced/backed up to iCloud

Take help of a web browser and enter in www.icloud.com with the apple id and password used in an iPhone , the contacts that were saved in will be visible select the desired contacts and click on gear icon in the left bottom corner and click on export as v card .

Open finder , click on downloads , right click on .vcf file and open with contacts .app( default ) .

The address book will get opened , a pop up window will appear stating are you sure you want to add number of cards , click on add .

Again open your address book the contacts that were in the iPhone will be transferred under the section “ All contacts “ in the Mac address book .

Sign out from www.icloud.com used with Apple ID and password for an iPhone .

Then enter in www.icloud.com with the apple id and password used in the Mac , click on gear icon and click on import as v card all the contacts will be transferred in the iCloud server , click on create group on the bottom right corner an untitled folder will be created in the side bar and the contacts from iOS are all transferred to the iCloud server account .

See some articles iCloud: Export a contact as a vCard from iCloud Contacts

iCloud: Import a contact into iCloud Contacts

iCloud: Create a group in iCloud Contacts

In system preferences > icloud the Apple ID is signed in , the gmail address is kept same as Apple ID , if a contact is created in address book ( under gmail account ) it is reflected in All contacts , Create a new test user account and observe it https://support.apple.com/en-in/HT204443

Not only contacts occupy iCloud storage space , the other applications like photos , notes , mails , reminders ....also occupy you have to follow this article to reduce space https://support.apple.com/en-in/HT204247

Or else buy a new storage plan to increase the storage https://support.apple.com/en-in/HT201318

See these articles https://support.apple.com/en-bw/HT205754

https://support.apple.com/en-in/HT203521

Do you have any other accounts on your device that are aloud to use contacts? I had this issue a while ago and it was because when I would create a contact it would go right to my google account and not iCloud, therefore not sinking to iCloud.

I have tried for days to get my iphone6 contacts only sync'd and/or backedup to my iCloud account...every time I log into my Icloud.com account I get the same 25 contacts and I have actually 2K+..how can I force my iphone to upload to my icloud account? My phone is going to be wiped and I need to make sure I have my contacts backup..help!!!

I have exactly the same issue, only 1GB used. But I have hundreds of contacts on my current phone that will not sync to the cloud, even connecting via cable to Windows 10 PC. The contacts relate to an old iPhone 6, not my current XR.

If the iCloud storage is exceeding the limits the data will not get saved https://support.apple.com/en-in/HT206504

https://support.apple.com/en-in/HT203516