Hi NainaGoel-8916,
First, Let me list a high-level view of all Microsoft Dynamics 365 Business Application (And Business Supporting Apps).
Each one of them can serve certain business areas according to any business needs, they can be used individually and better to be used together as a one integrated/unified platform that empowers employees and customers with many features and capabilities.
Microsoft Dynamics 365 – Finance and Operations (ERP)
• Finance
• Supply Chain Management
• Dynamics 365 Product Visualize (preview)
• Intelligent Order Management (preview)
• Dynamics 365 Guides – Mixed Reality Application
• Commerce
• Connected Store (preview)
• Human Resources
• Business Central
Microsoft Dynamics 365 – Customer Engagement (CRM)
• Sales
• Marketing
• Project Operations
• Customer Service
• Customer Voice
Dynamics 365 - Field Service
Dynamics 365 - Remote Assist - Mixed Reality Application
Power Platform:
• Power BI
• Power Apps
• Power Automate + RPA.
• Power Virtual Agent
Microsoft Dynamics 365 AI and IoT
• Customer Insights
• Customer Service Insights
• Sales Insights
• Fraud Protection
• Finance insights (currently in preview)
• Connected Store (currently in preview)
• IoT Intelligence add-in for Microsoft Dynamics 365 Supply Chain Management
All Applications details can be found under:
https://dynamics.microsoft.com/en-us/
And the official Dynamics 365 YouTube Channel:
https://www.youtube.com/channel/UCJGCg4rB3QSs8y_1FquelBQ
Please let me know if you need more information about any particular application or functionality.