How to Build a Custom Connector in Copilot Studio

How to build a Custom Connector in Copilot Studio and turn a public API into a fully working AI agent. In this step-by-step tutorial, I connect to the Ticketmaster API, wire it into an Events Agent, and enable generative orchestration for multi-intent searches. Using the Power Platform, we explore the API spec, configure security correctly (including fixing an API key error), define query parameters like keyword, city, and startDateTime, and test everything before bringing it into Copilot Studio. As a Microsoft Cloud Solution Architect and former Microsoft MVP, I walk through the real-world issues you’ll hit — from 400 errors due to incorrect ISO 8601 date formats to optional input prompts affecting user experience. What You’ll Learn: 1️⃣ How to read API documentation and extract endpoints, parameters, and sample JSON 2️⃣ How to create a Custom Connector in Power Platform (security, query auth, actions) 3️⃣ How to test and debug connector errors (API key + 400 date format issues) 4️⃣ How to build a Copilot Studio agent and attach a Custom Connector action 5️⃣ How to enable generative orchestration for autonomous multi-intent queries 6️⃣ How to optimise agent inputs (optional fields vs prompt user settings) Timestamps: 0:00 Introduction and Overview 1:00 Setting Up the API 5:00 Creating the Custom Connector 9:00 Testing the Connector 10:30 Building the Events Agent 15:00 Configuring Agent Inputs 20:00 Using Generative Orchestration 26:00 Conclusion and Summary #CopilotStudio #PowerPlatform #CustomConnector #MicrosoftCopilot #AIAgents ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 👋 About Damien Bird Microsoft Cloud Solution Architect | Former MVP & Forum Super User Helping you automate, build, and innovate with Power Platform & AI 📚 Explore & Learn: 🏫 Join the Community: https://www.skool.com/damobird365-age... 🔗 Blog: https://DamoBird365.com 🎥 Video & Quiz CPD: https://DamoBird365.com/YouTube 📜 Feedback or Request: https://forms.office.com/e/WAV1iF2Wis 💖 Support & Connect: 🤝 Become a Member:    / @damobird365   ☕ Buy Me a Coffee: https://BuyMeACoffee.com/DamoBird365 💼 LinkedIn:   / damobird365