(Updated) Microsoft 365 Copilot: Content Sources in Copilot Chat

Message Center ID: MC1127230
Microsoft Copilot (Microsoft 365)
Plan for Change
New feature User impact
December 2025 January 2026
Desktop Web

Summary

Microsoft 365 Copilot will allow licensed users to select specific content sources for Copilot Chat responses, improving relevance and control. This feature rolls out globally from January to end of January 2026, is enabled by default, requires no admin action, and does not affect existing policies.

Details

Updated December 8, 2025: We have updated the timeline. Thank you for your patience.

 What and Why

We’re introducing a new capability that allows users with a Microsoft 365 Copilot license to scope and control Copilot Chat responses by selecting specific content sources. This enhancement is designed to improve the relevance and accuracy of Copilot responses by limiting them to user-selected sources, aligning with customer feedback for more transparent and customizable AI interactions.

This message is associated with Microsoft 365 Roadmap ID 496596

Rollout Schedule

General Availability (Worldwide): Rollout will begin in January2026 (previously mid-December 2025) and is expected to complete by end of January 2026 (previously late December 2025).

Impact on Your Organization

  • Who is affected:
    • Users with a Microsoft 365 Copilot license.
  • What will happen:
    • Users will see a new option to select content sources when using Copilot Chat.
    • Copilot responses will be scoped only to the selected sources, improving control and precision.
    • This feature will follow a standard rollout and is enabled by default.
    • There is no impact to admin settings or policies.
    • No changes to existing Copilot behavior unless users actively select sources.

    Action Required/Recommendations

    • No admin action is required.
    • This feature does not impact admin controls or require configuration.
    • We recommend:
      • Informing helpdesk staff of this new user-facing capability.
      • Updating internal documentation if you provide guidance on Copilot usage.

      Compliance Considerations

      No compliance considerations identified, review as appropriate for your organization.

      Related Roadmap Items

      Change History

      December 9, 2025 at 2:31 AM Updated
      Summary
      Previous
      Microsoft 365 Copilot now lets licensed users select specific content sources for Copilot Chat responses, enhancing relevance and control. The feature rolls out globally from mid to late December 2025, is enabled by default, requires no admin action, and does not affect existing policies or compliance.
      New
      Microsoft 365 Copilot will allow licensed users to select specific content sources for Copilot Chat responses, improving relevance and control. This feature rolls out globally from January to end of January 2026, is enabled by default, requires no admin action, and does not affect existing policies.
      Last Updated Date
      Previous
      2025-12-03T21:16:22.410Z
      New
      2025-12-09T00:18:06.780Z
      Body Content
      Previous

      Updated December 3, 2025: We have updated the timeline. Thank you for your patience.

       What and Why

      We’re introducing a new capability that allows users with a Microsoft 365 Copilot license to scope and control Copilot Chat responses by selecting specific content sources. This enhancement is designed to improve the relevance and accuracy of Copilot responses by limiting them to user-selected sources, aligning with customer feedback for more transparent and customizable AI interactions.

      This message is associated with Microsoft 365 Roadmap ID 496596

      Rollout Schedule

      General Availability (Worldwide): Rollout will begin in mid-December 2025 (previously late November) and is expected to complete by late December 2025 (previously mid-December).

      Impact on Your Organization

      • Who is affected:
        • Users with a Microsoft 365 Copilot license.
      • What will happen:
        • Users will see a new option to select content sources when using Copilot Chat.
        • Copilot responses will be scoped only to the selected sources, improving control and precision.
        • This feature will follow a standard rollout and is enabled by default.
        • There is no impact to admin settings or policies.
        • No changes to existing Copilot behavior unless users actively select sources.

        Action Required/Recommendations

        • No admin action is required.
        • This feature does not impact admin controls or require configuration.
        • We recommend:
          • Informing helpdesk staff of this new user-facing capability.
          • Updating internal documentation if you provide guidance on Copilot usage.

          Compliance Considerations

          No compliance considerations identified, review as appropriate for your organization.

          New

          Updated December 8, 2025: We have updated the timeline. Thank you for your patience.

           What and Why

          We’re introducing a new capability that allows users with a Microsoft 365 Copilot license to scope and control Copilot Chat responses by selecting specific content sources. This enhancement is designed to improve the relevance and accuracy of Copilot responses by limiting them to user-selected sources, aligning with customer feedback for more transparent and customizable AI interactions.

          This message is associated with Microsoft 365 Roadmap ID 496596

          Rollout Schedule

          General Availability (Worldwide): Rollout will begin in January2026 (previously mid-December 2025) and is expected to complete by end of January 2026 (previously late December 2025).

          Impact on Your Organization

          • Who is affected:
            • Users with a Microsoft 365 Copilot license.
          • What will happen:
            • Users will see a new option to select content sources when using Copilot Chat.
            • Copilot responses will be scoped only to the selected sources, improving control and precision.
            • This feature will follow a standard rollout and is enabled by default.
            • There is no impact to admin settings or policies.
            • No changes to existing Copilot behavior unless users actively select sources.

            Action Required/Recommendations

            • No admin action is required.
            • This feature does not impact admin controls or require configuration.
            • We recommend:
              • Informing helpdesk staff of this new user-facing capability.
              • Updating internal documentation if you provide guidance on Copilot usage.

              Compliance Considerations

              No compliance considerations identified, review as appropriate for your organization.

              December 3, 2025 at 10:31 PM Updated
              Summary
              Previous
              Microsoft 365 Copilot will let licensed users select specific content sources to scope Copilot Chat responses, enhancing relevance and control. The feature rolls out worldwide from late November to mid-December 2025, is enabled by default, requires no admin action, and does not affect existing policies.
              New
              Microsoft 365 Copilot now lets licensed users select specific content sources for Copilot Chat responses, enhancing relevance and control. The feature rolls out globally from mid to late December 2025, is enabled by default, requires no admin action, and does not affect existing policies or compliance.
              Last Updated Date
              Previous
              2025-11-05T22:21:07.810Z
              New
              2025-12-03T21:16:22.410Z
              Body Content
              Previous

              Updated November 5, 2025: We have updated the timeline. Thank you for your patience.

               What and Why

              We’re introducing a new capability that allows users with a Microsoft 365 Copilot license to scope and control Copilot Chat responses by selecting specific content sources. This enhancement is designed to improve the relevance and accuracy of Copilot responses by limiting them to user-selected sources, aligning with customer feedback for more transparent and customizable AI interactions.

              This message is associated with Microsoft 365 Roadmap ID 496596

              Rollout Schedule

              General Availability (Worldwide): Rollout will begin in late November 2025 (previously late October) and is expected to complete by mid-December 2025 (previously mid-November).

              Impact on Your Organization

              • Who is affected:
                • Users with a Microsoft 365 Copilot license.
              • What will happen:
                • Users will see a new option to select content sources when using Copilot Chat.
                • Copilot responses will be scoped only to the selected sources, improving control and precision.
                • This feature will follow a standard rollout and is enabled by default.
                • There is no impact to admin settings or policies.
                • No changes to existing Copilot behavior unless users actively select sources.

                Action Required/Recommendations

                • No admin action is required.
                • This feature does not impact admin controls or require configuration.
                • We recommend:
                  • Informing helpdesk staff of this new user-facing capability.
                  • Updating internal documentation if you provide guidance on Copilot usage.

                  Compliance Considerations

                  No compliance considerations identified, review as appropriate for your organization.

                  New

                  Updated December 3, 2025: We have updated the timeline. Thank you for your patience.

                   What and Why

                  We’re introducing a new capability that allows users with a Microsoft 365 Copilot license to scope and control Copilot Chat responses by selecting specific content sources. This enhancement is designed to improve the relevance and accuracy of Copilot responses by limiting them to user-selected sources, aligning with customer feedback for more transparent and customizable AI interactions.

                  This message is associated with Microsoft 365 Roadmap ID 496596

                  Rollout Schedule

                  General Availability (Worldwide): Rollout will begin in mid-December 2025 (previously late November) and is expected to complete by late December 2025 (previously mid-December).

                  Impact on Your Organization

                  • Who is affected:
                    • Users with a Microsoft 365 Copilot license.
                  • What will happen:
                    • Users will see a new option to select content sources when using Copilot Chat.
                    • Copilot responses will be scoped only to the selected sources, improving control and precision.
                    • This feature will follow a standard rollout and is enabled by default.
                    • There is no impact to admin settings or policies.
                    • No changes to existing Copilot behavior unless users actively select sources.

                    Action Required/Recommendations

                    • No admin action is required.
                    • This feature does not impact admin controls or require configuration.
                    • We recommend:
                      • Informing helpdesk staff of this new user-facing capability.
                      • Updating internal documentation if you provide guidance on Copilot usage.

                      Compliance Considerations

                      No compliance considerations identified, review as appropriate for your organization.

                      November 6, 2025 at 2:31 AM Updated
                      Summary
                      Previous
                      Microsoft 365 Copilot will let licensed users select specific content sources for Copilot Chat responses, enhancing relevance and control. The feature rolls out worldwide from late October to mid-November 2025, is enabled by default, requires no admin action, and does not affect existing policies or compliance.
                      New
                      Microsoft 365 Copilot will let licensed users select specific content sources to scope Copilot Chat responses, enhancing relevance and control. The feature rolls out worldwide from late November to mid-December 2025, is enabled by default, requires no admin action, and does not affect existing policies.
                      Last Updated Date
                      Previous
                      2025-09-25T13:03:54.093Z
                      New
                      2025-11-05T22:21:07.810Z
                      Body Content
                      Previous

                      Updated September 25, 2025: We have updated the timeline. Thank you for your patience.

                       What and Why

                      We’re introducing a new capability that allows users with a Microsoft 365 Copilot license to scope and control Copilot Chat responses by selecting specific content sources. This enhancement is designed to improve the relevance and accuracy of Copilot responses by limiting them to user-selected sources, aligning with customer feedback for more transparent and customizable AI interactions.

                      This message is associated with Microsoft 365 Roadmap ID 496596

                      Rollout Schedule

                      General Availability (Worldwide): Rollout will begin in late October 2025 (previously mid-October) and is expected to complete by mid-November 2025 (previously late October).

                      Impact on Your Organization

                      • Who is affected:
                        • Users with a Microsoft 365 Copilot license.
                      • What will happen:
                        • Users will see a new option to select content sources when using Copilot Chat.
                        • Copilot responses will be scoped only to the selected sources, improving control and precision.
                        • This feature will follow a standard rollout and is enabled by default.
                        • There is no impact to admin settings or policies.
                        • No changes to existing Copilot behavior unless users actively select sources.

                        Action Required/Recommendations

                        • No admin action is required.
                        • This feature does not impact admin controls or require configuration.
                        • We recommend:
                          • Informing helpdesk staff of this new user-facing capability.
                          • Updating internal documentation if you provide guidance on Copilot usage.

                          Compliance Considerations

                          No compliance considerations identified, review as appropriate for your organization.

                          New

                          Updated November 5, 2025: We have updated the timeline. Thank you for your patience.

                           What and Why

                          We’re introducing a new capability that allows users with a Microsoft 365 Copilot license to scope and control Copilot Chat responses by selecting specific content sources. This enhancement is designed to improve the relevance and accuracy of Copilot responses by limiting them to user-selected sources, aligning with customer feedback for more transparent and customizable AI interactions.

                          This message is associated with Microsoft 365 Roadmap ID 496596

                          Rollout Schedule

                          General Availability (Worldwide): Rollout will begin in late November 2025 (previously late October) and is expected to complete by mid-December 2025 (previously mid-November).

                          Impact on Your Organization

                          • Who is affected:
                            • Users with a Microsoft 365 Copilot license.
                          • What will happen:
                            • Users will see a new option to select content sources when using Copilot Chat.
                            • Copilot responses will be scoped only to the selected sources, improving control and precision.
                            • This feature will follow a standard rollout and is enabled by default.
                            • There is no impact to admin settings or policies.
                            • No changes to existing Copilot behavior unless users actively select sources.

                            Action Required/Recommendations

                            • No admin action is required.
                            • This feature does not impact admin controls or require configuration.
                            • We recommend:
                              • Informing helpdesk staff of this new user-facing capability.
                              • Updating internal documentation if you provide guidance on Copilot usage.

                              Compliance Considerations

                              No compliance considerations identified, review as appropriate for your organization.

                              September 25, 2025 at 2:30 PM Updated
                              Summary
                              Previous
                              Microsoft 365 Copilot will allow licensed users to select specific content sources for Copilot Chat responses, enhancing relevance and control. The feature rolls out worldwide from mid-October to late November 2025, is enabled by default, requires no admin action, and has no compliance concerns.
                              New
                              Microsoft 365 Copilot will let licensed users select specific content sources for Copilot Chat responses, enhancing relevance and control. The feature rolls out worldwide from late October to mid-November 2025, is enabled by default, requires no admin action, and does not affect existing policies or compliance.
                              Last Updated Date
                              Previous
                              2025-09-09T19:02:10.070Z
                              New
                              2025-09-25T13:03:54.093Z
                              Body Content
                              Previous

                              Updated September 9, 2025: We have updated the timeline. Thank you for your patience.

                               What and Why

                              We’re introducing a new capability that allows users with a Microsoft 365 Copilot license to scope and control Copilot Chat responses by selecting specific content sources. This enhancement is designed to improve the relevance and accuracy of Copilot responses by limiting them to user-selected sources, aligning with customer feedback for more transparent and customizable AI interactions.

                              This message is associated with Microsoft 365 Roadmap ID 496596

                              Rollout Schedule

                              General Availability (Worldwide): Rollout will begin in mid-October 2025 (previously late September) and is expected to complete by late November 2025 (previously late October).

                              Impact on Your Organization

                              • Who is affected:
                                • Users with a Microsoft 365 Copilot license.
                              • What will happen:
                                • Users will see a new option to select content sources when using Copilot Chat.
                                • Copilot responses will be scoped only to the selected sources, improving control and precision.
                                • This feature will follow a standard rollout and is enabled by default.
                                • There is no impact to admin settings or policies.
                                • No changes to existing Copilot behavior unless users actively select sources.

                                Action Required/Recommendations

                                • No admin action is required.
                                • This feature does not impact admin controls or require configuration.
                                • We recommend:
                                  • Informing helpdesk staff of this new user-facing capability.
                                  • Updating internal documentation if you provide guidance on Copilot usage.

                                  Compliance Considerations

                                  No compliance considerations identified, review as appropriate for your organization.

                                  New

                                  Updated September 25, 2025: We have updated the timeline. Thank you for your patience.

                                   What and Why

                                  We’re introducing a new capability that allows users with a Microsoft 365 Copilot license to scope and control Copilot Chat responses by selecting specific content sources. This enhancement is designed to improve the relevance and accuracy of Copilot responses by limiting them to user-selected sources, aligning with customer feedback for more transparent and customizable AI interactions.

                                  This message is associated with Microsoft 365 Roadmap ID 496596

                                  Rollout Schedule

                                  General Availability (Worldwide): Rollout will begin in late October 2025 (previously mid-October) and is expected to complete by mid-November 2025 (previously late October).

                                  Impact on Your Organization

                                  • Who is affected:
                                    • Users with a Microsoft 365 Copilot license.
                                  • What will happen:
                                    • Users will see a new option to select content sources when using Copilot Chat.
                                    • Copilot responses will be scoped only to the selected sources, improving control and precision.
                                    • This feature will follow a standard rollout and is enabled by default.
                                    • There is no impact to admin settings or policies.
                                    • No changes to existing Copilot behavior unless users actively select sources.

                                    Action Required/Recommendations

                                    • No admin action is required.
                                    • This feature does not impact admin controls or require configuration.
                                    • We recommend:
                                      • Informing helpdesk staff of this new user-facing capability.
                                      • Updating internal documentation if you provide guidance on Copilot usage.

                                      Compliance Considerations

                                      No compliance considerations identified, review as appropriate for your organization.

                                      September 9, 2025 at 8:30 PM Updated
                                      Summary
                                      Previous
                                      Microsoft 365 Copilot will let licensed users select specific content sources for Copilot Chat responses, enhancing relevance and control. This feature, enabled by default with no admin changes needed, will roll out worldwide from late September to late October 2025. No compliance issues identified.
                                      New
                                      Microsoft 365 Copilot will allow licensed users to select specific content sources for Copilot Chat responses, enhancing relevance and control. The feature rolls out worldwide from mid-October to late November 2025, is enabled by default, requires no admin action, and has no compliance concerns.
                                      Last Updated Date
                                      Previous
                                      2025-08-20T14:01:07.007Z
                                      New
                                      2025-09-09T19:02:10.070Z
                                      Body Content
                                      Previous

                                      Updated August 20, 2025: We have updated the content. Thank you for your patience.

                                      What and Why

                                      We’re introducing a new capability that allows users with a Microsoft 365 Copilot license to scope and control Copilot Chat responses by selecting specific content sources. This enhancement is designed to improve the relevance and accuracy of Copilot responses by limiting them to user-selected sources, aligning with customer feedback for more transparent and customizable AI interactions.

                                      This message is associated with Microsoft 365 Roadmap ID 496596

                                      Rollout Schedule

                                      General Availability (Worldwide): Rollout will begin in late September 2025 (previously mid-August) and is expected to complete by late October 2025 (previously late August).

                                      Impact on Your Organization

                                      • Who is affected:
                                        • Users with a Microsoft 365 Copilot license.
                                      • What will happen:
                                        • Users will see a new option to select content sources when using Copilot Chat.
                                        • Copilot responses will be scoped only to the selected sources, improving control and precision.
                                        • This feature will follow a standard rollout and is enabled by default.
                                        • There is no impact to admin settings or policies.
                                        • No changes to existing Copilot behavior unless users actively select sources.

                                        Action Required/Recommendations

                                        • No admin action is required.
                                        • This feature does not impact admin controls or require configuration.
                                        • We recommend:
                                          • Informing helpdesk staff of this new user-facing capability.
                                          • Updating internal documentation if you provide guidance on Copilot usage.

                                          Compliance Considerations

                                          No compliance considerations identified, review as appropriate for your organization.

                                          New

                                          Updated September 9, 2025: We have updated the timeline. Thank you for your patience.

                                           What and Why

                                          We’re introducing a new capability that allows users with a Microsoft 365 Copilot license to scope and control Copilot Chat responses by selecting specific content sources. This enhancement is designed to improve the relevance and accuracy of Copilot responses by limiting them to user-selected sources, aligning with customer feedback for more transparent and customizable AI interactions.

                                          This message is associated with Microsoft 365 Roadmap ID 496596

                                          Rollout Schedule

                                          General Availability (Worldwide): Rollout will begin in mid-October 2025 (previously late September) and is expected to complete by late November 2025 (previously late October).

                                          Impact on Your Organization

                                          • Who is affected:
                                            • Users with a Microsoft 365 Copilot license.
                                          • What will happen:
                                            • Users will see a new option to select content sources when using Copilot Chat.
                                            • Copilot responses will be scoped only to the selected sources, improving control and precision.
                                            • This feature will follow a standard rollout and is enabled by default.
                                            • There is no impact to admin settings or policies.
                                            • No changes to existing Copilot behavior unless users actively select sources.

                                            Action Required/Recommendations

                                            • No admin action is required.
                                            • This feature does not impact admin controls or require configuration.
                                            • We recommend:
                                              • Informing helpdesk staff of this new user-facing capability.
                                              • Updating internal documentation if you provide guidance on Copilot usage.

                                              Compliance Considerations

                                              No compliance considerations identified, review as appropriate for your organization.

                                              August 20, 2025 at 2:30 PM Updated
                                              Title
                                              Previous
                                              Microsoft 365 Copilot: Content Sources in Copilot Chat
                                              New
                                              (Updated) Microsoft 365 Copilot: Content Sources in Copilot Chat
                                              Summary
                                              Previous
                                              Microsoft 365 Copilot will allow users with a license to select specific content sources for Copilot Chat responses, enhancing relevance and control. This feature rolls out worldwide from mid to late August 2025, is enabled by default, requires no admin action, and does not affect existing policies or compliance.
                                              New
                                              Microsoft 365 Copilot will let licensed users select specific content sources for Copilot Chat responses, enhancing relevance and control. This feature, enabled by default with no admin changes needed, will roll out worldwide from late September to late October 2025. No compliance issues identified.
                                              Last Updated Date
                                              Previous
                                              2025-08-01T23:19:47.893Z
                                              New
                                              2025-08-20T14:01:07.007Z
                                              Tags
                                              Previous
                                              New feature,User impact
                                              New
                                              Updated message,New feature,User impact
                                              Body Content
                                              Previous

                                              What and Why

                                              We’re introducing a new capability that allows users with a Microsoft 365 Copilot license to scope and control Copilot Chat responses by selecting specific content sources. This enhancement is designed to improve the relevance and accuracy of Copilot responses by limiting them to user-selected sources, aligning with customer feedback for more transparent and customizable AI interactions.

                                              This message is associated with Microsoft 365 Roadmap ID 496596

                                              Rollout Schedule

                                              General Availability (Worldwide): Rollout will begin in mid-August 2025 and is expected to complete by late August 2025.

                                              Impact on Your Organization

                                              • Who is affected:
                                                • Users with a Microsoft 365 Copilot license.
                                              • What will happen:
                                                • Users will see a new option to select content sources when using Copilot Chat.
                                                • Copilot responses will be scoped only to the selected sources, improving control and precision.
                                                • This feature will follow a standard rollout and is enabled by default.
                                                • There is no impact to admin settings or policies.
                                                • No changes to existing Copilot behavior unless users actively select sources.

                                                Action Required/Recommendations

                                                • No admin action is required.
                                                • This feature does not impact admin controls or require configuration.
                                                • We recommend:
                                                  • Informing helpdesk staff of this new user-facing capability.
                                                  • Updating internal documentation if you provide guidance on Copilot usage.

                                                  Compliance Considerations

                                                  No compliance considerations identified, review as appropriate for your organization.

                                                  New

                                                  Updated August 20, 2025: We have updated the content. Thank you for your patience.

                                                  What and Why

                                                  We’re introducing a new capability that allows users with a Microsoft 365 Copilot license to scope and control Copilot Chat responses by selecting specific content sources. This enhancement is designed to improve the relevance and accuracy of Copilot responses by limiting them to user-selected sources, aligning with customer feedback for more transparent and customizable AI interactions.

                                                  This message is associated with Microsoft 365 Roadmap ID 496596

                                                  Rollout Schedule

                                                  General Availability (Worldwide): Rollout will begin in late September 2025 (previously mid-August) and is expected to complete by late October 2025 (previously late August).

                                                  Impact on Your Organization

                                                  • Who is affected:
                                                    • Users with a Microsoft 365 Copilot license.
                                                  • What will happen:
                                                    • Users will see a new option to select content sources when using Copilot Chat.
                                                    • Copilot responses will be scoped only to the selected sources, improving control and precision.
                                                    • This feature will follow a standard rollout and is enabled by default.
                                                    • There is no impact to admin settings or policies.
                                                    • No changes to existing Copilot behavior unless users actively select sources.

                                                    Action Required/Recommendations

                                                    • No admin action is required.
                                                    • This feature does not impact admin controls or require configuration.
                                                    • We recommend:
                                                      • Informing helpdesk staff of this new user-facing capability.
                                                      • Updating internal documentation if you provide guidance on Copilot usage.

                                                      Compliance Considerations

                                                      No compliance considerations identified, review as appropriate for your organization.

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