: You pay full price for the first (usually most expensive) app a user needs.
Buying Microsoft Dynamics is not as simple as clicking a "Buy Now" button for a standard software download. Because these are complex Enterprise Resource Planning (ERP) and Customer Relationship Management (CRM) tools, the process is highly modular and usually involves specialized partners.
: Need complete access to feature-rich apps (e.g., sales reps, accountants).
: Large enterprises may buy through established Microsoft Volume Licensing agreements for broader deployment. Understanding the Licensing Model
Microsoft uses a "Base + Attach" subscription model to keep costs down when you need multiple apps.