Copilot Studio Tutorial: Build an AI Agent for User Onboarding

A Copilot Studio tutorial from a real project. I build a Copilot Studio agent that handles user onboarding and user management in Entra ID from one sentence, and I show you exactly where the AI got the code wrong. This is Architect's Build Lab, Episode 1. I take a solution I built for a real enterprise, and rebuild it from an empty tenant: the result first, then every step. The original went live at a large enterprise, and the IT team loved it. Here I rebuild it in a demo tenant, so you can build it too. What gets built One Copilot Studio agent with generative orchestration and one tool, Run admin action Topics and tools: why this agent needs one well described tool instead of a topic for every task One Power Automate flow, built as an agent flow, with approvals for risky actions: password resets, role changes and leavers wait for the IT lead One Dataverse plugin in C# behind a Custom API, calling the Microsoft Graph API as its own identity 33 operations for user onboarding, user management, group management and Entra ID administration An audit table that records who asked and what happened Fifteen narrow Graph permissions, and never Directory.ReadWrite.All Built with Claude, reviewed by an architect. Claude Code wrote most of the plugin code from my spec, and I reviewed every function. Two of its mistakes are in the video: a build error caused by hidden Unicode characters, and a quiet permission problem that would have let the safety fence approve itself. Chapters 0:00 The problem, and the agent running for real 1:21 Intro: how I build with AI today 1:43 The architecture: one agent, one flow, one plugin 4:11 Identity done properly: app registration and Graph permissions 6:55 The C# Dataverse plugin: written with Claude, reviewed by an architect 11:17 The Power Automate agent flow with approvals 12:38 The Copilot Studio agent: instructions and one tool 15:03 Security and guardrails 16:34 Final test: user onboarding, questions, group management, a password reset 17:57 The takeaway, what's next and the free course Code on GitHub: https://github.com/arihantexplains/bu... New to agents, Copilot Studio or Power Platform? My free fundamentals course has 30 short lessons on real screens, from the basics to your first agent:    • Power Platform Fundamentals | Full Free Co...   Next episode: something very different, a smart garden I can water from anywhere in the world. I'm Arihant Jain, a senior Solution Architect. I've spent nearly 15 years building business apps, automation and AI solutions with Microsoft technologies, and here I explain them the way I would to a colleague sitting next to me. Short tips most days on Instagram and Facebook Instagram:   / arihant.explains   Facebook:   / arihant.explains   I checked the steps in this video against Microsoft Learn in October 2026. Features and licensing change often, so please check Microsoft Learn for the latest. Views are my own. Microsoft, Copilot Studio, Power Automate, Dataverse, Microsoft Entra ID and Microsoft Graph are trademarks of the Microsoft group of companies. Claude is a trademark of Anthropic. The narration is an AI voice made from my own voice. Product icons used for education. #CopilotStudio #PowerAutomate #ArihantExplains