Over the past year or so Microsoft has changed the branding of Microsoft Dynamics NAV in the cloud so you might well be confused.
Here is my understanding from a slide shown at Directions EMEA in Oct 2017. Note that “Tenerife” is a code name pending formal annoucement of a product name.
| Cloud | On-Premises | |
|---|---|---|
| End 2016 | Dynamics 365 for Financials, Business Edition | Dynamics NAV 2016 |
| Spring 2017 | Dynamics 365 for Finance and Operations, Business Edition | Dynamics NAV 2017 |
| Fall 2017 | Dynamics 365 for Finance and Operations, Business Edition | Dynamics NAV 2018 |
| Spring 2018 | Dynamics 365 “Tenerife” | Dynamics NAV 2018 R2 |
| Ongoing | Dynamics 365 “Tenerife” |
Dynamics 365 “Tenerife” |