Microsoft’s somewhat fragmented licensing approach is a result of trying to provide the flexibility for every organisation to only pay for what they need. With Microsoft products in use by over a million different organisations worldwide (Statistica, 2021), there was never going to be an easy one-size-fits-all solution to licensing. To try and rectify that situation, we’ve put together this blog to explain the differences between Microsoft 365’s two main enterprise licensing options: E3 and E5. And for good reason – it’s darn complicated. There’s a shortage of good resources on the Internet to explain Microsoft’s enterprise licensing options.