Microsoft Copilot Studio GA: Multi-Agent Orchestration with A2A Protocol, Fabric, and M365 SDK

Microsoft Copilot Blog·medium signal

Microsoft rolled out multi-agent capabilities to general availability in April 2026. Key additions: Agent-to-Agent (A2A) communication protocol enabling Copilot Studio agents to delegate work to first/second/third-party agents via an open protocol; Microsoft Fabric integration connecting agents to the enterprise data estate; and M365 Agents SDK orchestration for reusing agent logic across experiences. Also ships with an immersive Prompt Builder GA for in-context prompt editing. Significant for enterprise multi-agent coordination.