If your phone is having problems syncing with your Google Account, you could see a message, 'Sync is currently experiencing problems. It will be back shortly', or a Sync issue icon 
Most sync issues are temporary. Usually, your account will sync again after a few minutes. But if you keep having sync issues, try the following solutions.
Important: Some of these steps work only on Android 9 and up. Learn how to check your Android version.
Manually sync your Google Account
- Open your device's Settings app.
- Tap About phone
Google Account
- If you have more than one account on your device, tap the one that you want to sync.
- Tap More
Google Account 
Try common sync solutions
After each troubleshooting step below, try manually syncing to see whether sync works.
Troubleshoot with basic steps
If you want sync to happen automatically, keep auto-sync turned on. Learn how to auto-sync your apps and accounts.
Important: For sync to work, you need to be able to sign in to your Google Account.
Make sure that you can sign in to your Google Account in other ways and on another device. For example, try checking your Gmail using your computer's browser.
- If you can sign in, the issue is with your phone. Try the next solution.
- If you can't sign in, your account may have an issue. Get help signing in to your account.
- Open your phone's Settings app.
- Near the bottom, tap System
- When the update status appears on your screen, follow the steps.
Troubleshoot with advanced steps
Option 1: Change date and time settings
- Open your phone's Settings app.
- Tap System
Date and time.
- Turn off Set time automatically and Set time zone automatically.
- Manually change the date and time so that both are wrong.
- Go to your home screen. Learn how to get around on your phone.
- Open your phone's Settings app
- Manually change the date and time so that both are right again.
- Turn on Set time automatically and Set time zone automatically.
Date and time.Option 2: Force sync using Phone app (phones only)
- Open your phone's Phone app.
- Tap the Keypad
.
- Dial
*#*# CHECKIN #*#*(*#*#2432546#*#*). - You'll see a notification that says 'Checkin succeeded'. This message shows that your phone was able to sync. If you don't see a notification right away, tap the green Phone
.
Step 1: Back up contacts
- Open your phone's Contacts app.
- Tap Menu
- Under 'Manage contacts', tap Export.
- Pick a location, like your Drive.
- Tap Save.
Step 2: Clear cached data
- Open your phone's Settings app.
- Tap Apps
- Tap Clear cache
.
.Step 3: Restore contacts
- Open your phone's Contacts app.
- Tap Menu
- Tap Import
- Pick the .vcf file that you exported.