How to disable duplicate calendar notifications? My stock Nexus 4 (4.2.2) is giving me multiple calendar notifications every day.  It gives me one notification which is a reminder for a specific upcoming event, and it gives me a second notification which is sort of a general roll-up of upcoming events.

Here's an example of the two notifications:


Screenshot (click image to enlarge)

I rely heavily on the reminder notifications, but I find the rollup to be useless for me.  I've verified that both are coming from the Calendars app by long-pressing on the notifications and clicking on App Info.

How do I disable the second "roll-up" calendar notification?
There are likely two calendar apps on your system. Stock Android includes an app and Google provides one as well, which might be preinstalled on your device, or you may have downloaded it without realizing it. They both look very similar (which is probably why you thought they were the same when you held on them for the App Info screen). Check in your app drawer. The stock Android calendar is a green calendar icon, and the Google one is blue. Then disable notifications for one of them.

You can always click on the roll-up notifications and when that app opens, go into the settings and disable notifications. Then go to your app drawer and check both icons (both are labeled calendar) see which app has notifications disabled. Once you determine what app it is, if it is the Google Calendar, you could just uninstall it, or if it is the built-in one, you can disable it via Settings -> Apps -> All -> Calendar -> Disable.