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Microsoft 365 Copilot Microsoft enables Claude models for tenants that haven't made a selection, and the option to allow them only in Copilot in Microsoft 365 apps retired

Microsoft 365 Message Center Archive by Merill Fernando

Microsoft 365 Message Center announced it on 10 Nov 2026; the deadline is 9 Dec 2026 (in 27 days).

27 Days left · 9 Dec 2026
29Days of notice from the first announcement
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  1. 10 Nov 2026 Announced · Microsoft 365 Message CenterAction may be required: Claude models in Copilot are coming into the EU Data Boundary and will be enabled by default Microsoft 365 Message Center Archive by Merill Fernando
  2. 10 Nov 2026 Message Center noticeMC1546438: Action may be required: Claude models in Copilot are coming into the EU Data Boundary and will be enabled by default Microsoft 365 Message Center Archive by Merill Fernando
  3. 9 Dec 2026 DeadlineThe date in the announcement Microsoft 365 Message Center Archive by Merill Fernando

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  1. 10 Nov 2026 · 02:38:37 UTC Link: Microsoft 365 Message Center Archive by Merill Fernandohttps://mc.merill.net/message/MC1546438
  2. 10 Nov 2026 · 02:38:37 UTC Link: The announcementhttps://admin.microsoft.com/#/MessageCenter/:/messages/MC1546438 → https://mc.merill.net/message/MC1546438
ChangeIntel

An IT change radar: releases, security, known issues, retirements, documentation changes, and service status from public sources. Every item links to supporting evidence; dates and statuses can change after they are read.

Sources read 12 Nov 17:32 UTC · 274 of 275 readable · 272 fully read · documentation 469/469 current