MC1530959 - Microsoft 365 Copilot Chat: View memory sources used to personalize responses
Microsoft 365 Message Center announcement MC1530959.
MS Message Center's Summary
Microsoft is introducing transparency features for Copilot Chat that display inline citations and source details when saved memories or past conversations personalize a response. The rollout begins in late October 2026 for users with a Premium license and active memory settings. Administrators should review existing tenant policies for enhanced personalization and ensure support teams understand that memory usage respects user controls.
- Administrator impact
- No direct administrator action is required.
- End user impact
- Users will see inline citations and source details on personalized Copilot Chat responses and can review or delete saved memories.
- Importance
- 3/10: This is a feature update that enhances transparency for users with a Copilot license and requires no mandatory administrative configuration.
Microsoft Copilot enhanced personalization control Microsoft Graph | Microsoft Learn
Microsoft Summary
Microsoft 365 Copilot Chat will show users which memories and past chats influenced personalized responses, with inline citations linking to sources. This feature requires a Premium license, rolls out in late October 2026, respects memory settings, and allows users to review or delete saved memories. No action is needed.
- Message Center ID
- MC1530959
- Category
- stay Informed
- Severity
- normal
- Services
- Microsoft Copilot (Microsoft 365)
- Tags
- New feature, User impact, Admin impact
- Roadmap ID
- 574111
- Platforms
- Web
- Published
- 2026-10-29
- Last updated
- 2026-10-29
- Expires
- 2026-11-30
[What and why] Microsoft 365 Copilot Chat is making personalization more transparent. When memory helps shape a response, users can see which custom instructions, saved memories, memories learned from conversations, and past chats contributed to the response. This helps users understand how Copilot personalized their response and gives them direct access to relevant past chats and saved memories. A Microsoft 365 Copilot (Premium) license is required. [Rollout schedule] General Availability (Worldwide): Beginning in late October 2026 and expected to complete by late October 2026 [Impact on your organization] Who is affected Users of Microsoft 365 Copilot Chat who have memory turned on Platforms and services Microsoft 365 Copilot Chat Microsoft 365 Copilot (Premium) What will happen When memory shapes a response, users can select Sources under the response and open the Personalization tab to see which custom instructions, saved memories, memories Copilot learned from conversations, and past chats were used. Past chats used in a response also appear as inline citations. Users can select a citation to return to that conversation. Users can open a cited saved memory in Copilot settings to review or delete it. Citations appear only when memory meaningfully shaped the response. As a result, not every personalized response will have citations, and the Personalization tab might show no citations for some responses. Citations respect each user's memory settings. If a user has turned off saved memories or chat history, those sources won't be shown. This update doesn't change what Copilot remembers, how memory is stored, or existing admin controls. It only shows users which existing memories were used. The feature is on by default for users who have memory turned on. [Action required and recommendations] No action is required. Memory citations will roll out automatically and respect existing admin and user memory settings. There is no separate setting for citations. Citations don't appear for users who have memory turned off. Admins can manage memory through the Enhanced Personalization control. This control is on by default and can be turned off for the entire tenant or for specific users through a Microsoft Entra group. Global Administrators and People Administrators can manage the control. Learn more Microsoft Copilot enhanced personalization control - Microsoft Graph | Microsoft Learn [Compliance considerations] Question Answer Does the change modify how users can access, export, delete, or correct their personal data? Yes. Users can open a cited saved memory in Copilot settings to review or delete it. Does the change include an admin control, and can it be controlled through Entra ID group membership? Yes. The Enhanced Personalization control manages memory. Admins can turn it off for the tenant or specific users through an Entra group.