Overview
Built a comprehensive PowerShell automation suite for managing the Microsoft 365 user lifecycle across a multi-location organization. Handles bulk user provisioning, attribute updates, license management, and calendar sharing - all driven by CSV inputs and authenticated via certificate-based Azure AD app registration.
Key Features
- Bulk user attribute updates from CSV with flexible header mapping
- Manager hierarchy synchronization across Active Directory and Entra ID
- License assignment and removal with eligibility validation
- Calendar sharing delegation for cross-department visibility
- Custom attribute sync (extensionAttribute1-15) for downstream automation
- Hire date tracking and onboarding workflow triggers
- Detailed logging with color-coded console output and log file export
Technical Highlights
- Microsoft Graph API with certificate-based OAuth 2.0 authentication
- Exchange Online Management module for mailbox and calendar operations
- PowerShell data file (.psd1) configuration for environment-specific settings
- CSV-driven bulk operations with validation and error handling per record
- Supports multi-tenant configurations (dev and production tenants)
- Modular function design for reuse across scripts