You can refer the following links on various aspects of Microsoft 365 administration:
1. Business owners and admins

Watch these short videos to help set up your business with Microsoft. Watch videos

2. Enterprise IT Professionals

Choose a learning path, explore Microsoft 365, and achieve certification. See learning paths

3. Learn about Microsoft 365 Business

Run your business with the latest versions of Windows and Office apps like Word and Excel. Use file storage from anywhere and rely on enterprise-grade data protection and security that extends to all your business devices.

Easy video tutorials to help you get started. Watch videos

4. Learn about Microsoft 365 for enterprise

Discover product components and features. Read the overview

5. Make the switch

Move your business from G Suite to Microsoft 365. Find out how