Microsoft Dynamics 365 is a portfolio of business applications including both ERP and CRM applications as well as Artificial Intelligence apps.
The Dynamics 365 ERP applications include Business Central, Finance, Supply Chain Management, Commerce, Project Operations, and Human Resources.
And Dynamics 365 CRM Applications includes Sales, Marketing, Customer Service, and Field Service.
Microsoft Dynamics 365 also include Artificial Intelligence applications which include: Fraud Protection, Connected Store, Customer Insights, Customer Service Insights, Sales Insights, Finance Insights, and Virtual Agents.
Each app is designed to remove the barriers and eliminate silos within organizations by working together with existing systems—or the entire portfolio of Dynamics 365 apps—for outcomes you simply can’t get unless every part of the business is connected seamlessly.
Here you can see Microsoft Ecosystem.