So you want to use SharePoint integration with Dynamics 365 Online, do you need to buy a SharePoint license for your users?
The answer is probably not. Many Dynamics 365 license types include SharePoint plan 2 licenses.
So what does this get you? It includes everything needed for SharePoint document integration with Dynamics 365, but does not include office web apps or services like Exchange, Skype for Business, Teams, Yammer and Delve.
Thanks to CRM Viking for contributing to this tip.