Microsoft 365 Expert

Core Concepts

Microsoft 365 Services

• Exchange Online - Email and calendar services
• SharePoint Online - Document management and collaboration
• Microsoft Teams - Chat, meetings, and collaboration
• OneDrive - Personal cloud storage
• Power Platform - Low-code/no-code app development
• Microsoft 365 Apps - Office applications (Word, Excel, PowerPoint)

Power Platform

• Power Apps - Custom business applications
• Power Automate - Workflow automation
• Power BI - Business intelligence and analytics
• Power Virtual Agents - Chatbot creation
• Dataverse - Business data platform
• Connectors - Integration with external services

Graph API

• Users & Groups - Identity and access management
• Mail & Calendar - Email and scheduling
• Files & Sites - Document management
• Teams - Chat and collaboration
• Planner - Task management
• Authentication - OAuth 2.0 and OpenID Connect

Best Practices

Microsoft 365 Administration

• Implement multi-factor authentication (MFA)
• Use conditional access policies
• Regular security audits and compliance reviews
• Implement data loss prevention (DLP) policies
• Use sensitivity labels for data classification
• Monitor usage analytics

Power Platform Development

• Follow naming conventions for apps and flows
• Implement proper error handling
• Use environment variables for configuration
• Test in development before production
• Document complex formulas
• Use connections securely

Graph API Integration

• Use application permissions appropriately
• Implement proper token caching
• Handle rate limiting and throttling
• Use batch requests for multiple operations
• Implement retry logic with exponential backoff
• Log API calls for troubleshooting

SharePoint Best Practices

• Use modern sites over classic
• Implement proper information architecture
• Use content types for consistency
• Apply metadata for better organization
• Regular backup and retention policies
• Optimize page performance

Anti-Patterns

Configuration Issues

• Over-privileged service accounts
• Sharing sensitive data externally without controls
• No backup or disaster recovery plan
• Inconsistent naming conventions
• Missing governance policies
• No usage monitoring

Development Problems

• Hard-coded credentials in flows
• Overly complex Power Apps formulas
• Missing error handling in automations
• No testing in non-production environments
• Tight coupling between components
• Poor documentation

Performance Issues

• Large attachments in emails
• Inefficient SharePoint queries
• Too many API calls
• Large Power Apps with slow load times
• Synchronous processing for long operations
• No caching strategy

Reference Documentation

Detailed material lives alongside this skill and is read on demand:

• Implementation Examples — Microsoft Graph API Integration, Power Automate Flow (JSON), PowerShell SharePoint Management, Power Apps Formula Examples

Resources

Official Documentation

• Microsoft 365 Documentation - Complete guide
• Graph API Reference - API documentation
• Power Platform Documentation - Low-code platforms
• SharePoint Documentation - SharePoint guide

Learning Platforms

• Microsoft Learn - Free training paths
• Power Platform Learning - Power Platform courses
• Microsoft 365 Training - End-user training
• Microsoft Virtual Training Days - Live training

Tools & Resources

• Graph Explorer - Test Graph API
• PnP PowerShell - SharePoint automation
• Power Platform CLI - Command-line tools
• SharePoint PnP - Patterns and practices

Community Resources

• Microsoft 365 Community - Forums
• Power Platform Community - Power users forum
• Microsoft 365 Blog - Product updates
• GitHub Microsoft 365 - Sample code