Post

🧵 1/ Flex routing goes live today for EU/EFTA Copilot tenants. Check MC to validate your default. Your Copilot data could process out of region now...

2/ Microsoft is introducing "flex routing", a setting that lets EU/EFTA tenants use Copilot LLMs outside of their sovereign data boundary (i.e. in USA, Canada etc.) when they are having peak demand issues.

3/ The default state is per-tenant: 🔹 New tenants (post-25 March 2026): on by default 🔹 Existing tenants: individual MC posts communicate your tenant's default Mine (MC1269219) shows off by default, live from 17 April 2026. Yours could differ.

5/ Data at rest still stays in the boundary. Data is encrypted in transit. But if flex routing is on, prompts and responses may traverse to the US/Canada/Australia during peak load.

6/ What to do: 🔹 Find the flex routing MC post in your tenant's Message Center 🔹 Admin Center > Copilot > Settings > Flexible inferencing during peak load periods 🔹 PPAC has a separate toggle for Dynamics 365, Power Platform, Copilot Studio 🔹 Not visible if you've bought Multi-Geo