RM554936 - Outlook: Copilot Chat available in shared and delegate mailboxes
Microsoft 365 Roadmap
What changed since this version
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Shared mailbox users and delegates with Read and manage (full access), and/or mail folder-level permission will now be able to access Copilot Chat directly from their shared and delegate mailboxes in new Outlook.
GA date: March CY2026
Snapshot from Apr 7, 2026
Shared mailbox users and delegates with Read and manage (full access), and/or mail folder-level permission will now be able to access Copilot Chat directly from their shared and delegate mailboxes in new Outlook.