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Microsoft 365 Copilot extensibility: Support Message Extensions as Declarative Agents on Mobile

Copilot
Support Message Extensions as Declarative Agents on Mobile
[Android, iOS]
Stay productive on the move with support for message extensions as declarative agents in Copilot on iOS and Android. These extensions simplify workflows like inserting quick snippets, accessing integrated apps, or triggering processes directly from your mobile interface.
Details:
What changed:
Message extensions based Declarative agents" instead of "Message extensions as declarative agents.
Why:
Workers increasingly use mobile as their primary device for timely communication and task management. Extending message-based workflows to mobile keeps teams efficient and responsive.
Try this:
In a Teams chat on your mobile app, use Copilot to insert a dynamic update from a connected app with a message extension.
Ask Copilot:
"Insert the latest sales figures into this conversation using our message extension agent."
Why this matters:
Business Impact:
Maintain seamless workflows across devices, ensuring real-time communication and agility for distributed teams.
Personal Impact:
Eliminate the frustration of being restricted to desktop for advanced actions—get the information and tools you need on the go.
Additional resources:
Learn:
Extend bot-based message extension as agent for Microsoft 365 Copilot
Original source ↗ Crawled: 11 Apr 2026 16:11