Gmail is not syncing on Android
Compare the same Gmail account on the web and Android to tell a syncing problem apart from an email that never reached the account.
Missing emails, syncing and notifications. Choose the guide that matches your situation.
Android · WebCompare the same Gmail account on the web and Android to tell a syncing problem apart from an email that never reached the account.
Search the whole Gmail account and check filters and storage before changing settings or deleting messages to recover missing emails.
If emails arrive in Gmail but Android shows no alert, check notification permission, account settings and labels without clearing app data.
Find whether Gmail on Android has a pending send, an unfinished attachment upload or a recipient rejection. Protect drafts and avoid duplicate emails.
Compare Gmail web with the iPhone or iPad app, test manual refresh and background activity, and separate syncing from missing notifications.
Separate a stuck upload, a blocked file and a Drive link without access. Test Gmail web with a small file that contains no private information.