MC1112450 — Microsoft 365 Copilot | Viva Engage discussion posts added to grounding sources

Microsoft 365 Copilot now includes Viva Engage discussion posts from public communities and Storylines as grounding sources, enhancing contextually relevant responses. This feature, rolling out from June to August 2025, requires no admin action and does not include private content. Review Viva Engage configurations and notify relevant parties.