Most developers hit a 403 on their first Copilot API call — not because of a misconfiguration, but because the Retrieval and Search APIs are delegated-only by design. This post maps the auth model, exact permission scopes per API surface, app registration choices, and SDK options into a single decision-support guide you can work through before writing your first integration call.
Microsoft Graph
Microsoft 365 Copilot APIs: What They Are, Why They Exist, and When to Use Them
Microsoft 365 Copilot APIs expose AI reasoning capabilities directly through Microsoft Graph, with your tenant's security and compliance controls inherited at the API layer. This post maps the eight API surfaces in the series, makes the GA-versus-preview boundaries explicit, and establishes the licensing prerequisites — before you evaluate a single endpoint.
🤖 Work IQ and Copilot Studio: Building Intelligent AI Agents Without Reinventing Context
Copilot Studio enables AI agents, but Work IQ gives them intelligence. Learn how Microsoft’s Work IQ layer provides context, memory, and governance for enterprise-ready AI agents.
🧠 Inside Work IQ: How Microsoft Built the Intelligence Layer for Copilot
Work IQ is the intelligence layer behind Microsoft 365 Copilot that enables AI to understand work signals, memory, and organizational context. In this post, we break down the Work IQ architecture and explain why it changes how enterprise AI and agents are built. #WorkIQ #MicrosoftCopilot #Microsoft365 #MicrosoftIgnite #M365MVP #EnterpriseAI #CopilotArchitecture #MicrosoftGraph #WorkSignals #ModernWork