Dynamics 365 licensing
Most Dynamics 365 full user licensing follows the base plus attach model, which provides a cost-effective way for a single user to be licensed for multiple applications. To license a core business Dynamics 365 application, customers can purchase either a base or, in many cases, an attach license(s). Every full user must have a base license. This sales motion is user license (USL) based. Only the business applications that are USLs can be purchased as an attach license.
Purchase the first or base license at standard pricing.
Purchase additional eligible attach licenses at a reduced price.
Marketing (tenant based), additional applications, capacity, or non-core business applications don't qualify for the multi-application base/attach motion but can be purchased as individual licenses.
Users who require multiple core business applications can purchase as many attach SKUs as needed at a reduced price. Each attach license can only be assigned to a user with a qualifying prerequisite base license. Admins don't need a license to configure and administer applications. The admin can't assign the attach license to a user who doesn't have the required base license. Customers who try to assign an attach license to a user that doesn't have the prerequisite base license will get an error during assignment.
Additional user access licenses
Additional users often represent a large percentage of users in an organization and can consume data or reports from line-of-business systems, complete light tasks, such as time or expense entry, complete human resources record updates, or be heavier users of the system, but they might not require full user capabilities. Additional users aren't subject to the base/attach motion and can access all applicable Dynamics 365 applications within the described constraints. The User SL and Device SL grant users with non-perpetual rights (with no buyout rights) to the use of the Dynamics 365 service. If you're current on your subscription payments and adhere to the Product Terms and the Online Services Terms, you'll have access to the most up-to-date version of Dynamics 365.
Learn more about licensing and transitioning
To learn more about licensing Dynamics 365, see Dynamics 365 Pricing and Licensing, and select the Grandfathering tab to learn about how to transition from Dynamics 365 Project Service Automation to Dynamics 365 Project Operations.