I'm the CEO of a translation company. Not an engineer. In Part 1 , I tried to connect Copilot Studio to LDX hub's StructFlow API and hit a wall before getting anything to work. This is Part 2 — the completion. It works now. I pasted meeting minutes into a Copilot Studio chat. It returned structured action items with assignees, tasks, and deadlines. It even interpreted "next week" as a specific date (May 8, Friday) based on the meeting date — and flagged it as an assumption for me to verify. Here's everything that happened between Part 1 and that result. The root cause of BadGateway The HTTP action I'd been using — "Send an HTTP request" — was actually routed through the Office 365 Users connector , not a raw HTTP connector. That's why every request to LDX hub returned BadGateway. The fix: use the green HTTP connector under "Built-in tools" in Power Automate. It looks similar to the white Office connector but behaves completely differently. The green one makes actual HTTP calls to external APIs.…