Easier account syncing with the latest version of the Google Calendar app for Android

January 26, 2016

When you’re on the go, you need your calendar events to be up to date. Now, the latest version of the Google Calendar app for Android makes it easy for you to see whether your accounts are properly syncing, and quickly fix them if they aren't.
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If sync is turned off for any of your accounts, you'll see the message “Enable sync” in the left side Menu. When you see this message, click on your account's email address to turn sync back on.

Source: Google Apps updates