Outlook vs. Sunrise - Can I Turn Off Outlook Calendar

[garak0410]

I'm in the Microsoft Ecosystem but needed an Android phone. I am using Outlook full on but the widget was quite ugly for the calendar. I tried Sunrise and love it but now I get two appointment notices between Sunrise and Outlook. If I turn off Calendar in Outlook and just use Sunrise, will that interfere with anything, like syncing and such?