Connector administration, Copilot Studio tuning changes, and multiple Copilot app updates dominated this week’s Microsoft 365 Message Center items.

Microsoft is moving Copilot connector and agent governance to a single global setting in the Microsoft 365 admin center and retiring the SetFederatedConnectors CLI toggle. Tenants using the CLI toggle should review and update their governance approach to use the Allowed agent types setting before the retirement causes configuration drift.

• Affects tenants that automated or enforced connector access via the setFederatedConnectors CLI toggle
• Connector and agent governance converges under global tenant settings in Microsoft 365 admin center

Microsoft is changing the tuning experience for Microsoft 365 Copilot declarative agents and moving it into Microsoft Copilot Studio. Some Copilot Tuning capabilities in selected Agent Builder templates will be temporarily paused during the transition, while existing agents continue to run.

• Expect a new skill-based tuning architecture and updated experience in Copilot Studio
• Plan for a temporary pause of certain tuning capabilities during rollout

Copilot Chat access in the Microsoft 365 Copilot mobile app (iOS/Android) is being simplified by removing reliance on two legacy mobile-only controls. If your organization used these controls to restrict access, you may need to update policies and communications to maintain intended governance.

• Legacy Intune policy com.microsoft.office.officemobile.BingChatEnterprise.IsAllowed no longer restricts Copilot Chat in the mobile app
• Privacy control “Analyze content” no longer restricts Copilot Chat in the mobile app

The Microsoft 365 Copilot app is updating to a unified experience across personal and work accounts with clearer account indicators and updated branding (name/icon) plus web URL alignment. Enterprises should prepare helpdesk and user communications, especially where account separation and security expectations are important.

• Clearer visual indicators to distinguish which account is active
• App name/icon and web app URL aligning more closely to Copilot

The Learning Coach agent in Microsoft 365 Copilot will be retired in the first week of October 2026 and removed from Copilot entry points. Organizations using Learning Coach should transition scenarios to Learning Agent before the retirement date.

• Learning Coach experiences and entry points will be removed
• Recommended replacement: Learning Agent

SharePoint is adding analytics that show how Microsoft 365 Copilot cites SharePoint documents, news posts, and pages, helping site owners identify high-impact content. This applies to tenants with Microsoft 365 Copilot licenses and requires more than 50 Copilot seats for insights to appear.

• Insights for documents, pages, and news posts referenced by Copilot
• Available only for tenants with >50 Copilot licenses

Copilot in Excel is adding the ability to attach Power BI reports so users can ask questions grounded in trusted Power BI data. This can improve consistency of metrics while relying on existing Power BI permissions and governance.

• Users attach a Power BI report and query Copilot from within Excel
• Respects existing Power BI permissions

Microsoft will remove the =COPILOT worksheet function from Excel beginning September 14, 2026. Organizations using Insider/Frontier previews should update any test materials and guidance to use Copilot in the side pane instead.

• Applies to Insider and Frontier preview users
• Copilot side pane remains available for supported Copilot in Excel capabilities

In late August 2026, Word will move the current Top of Doc summarization experience to other Copilot in Word surfaces. The feature is not being removed, but user training and internal documentation may need updates to reflect the new location.

• Rollout begins late August 2026 (GA Worldwide)
• Summarization remains available through Copilot in Word

Copilot Analytics Labs is rolling out as a self-service hub under Resources with templates, sample code, prompts, and guidance for measuring Copilot and agent adoption and impact. Analytics and program teams can use it to accelerate reporting and ROI measurement practices.

• Includes ready-to-use templates and guidance for adoption, usage, business impact, and ROI
• GA rollout in early–mid August 2026

The Microsoft 365 Copilot mobile app will add proactive push notifications for workflows like Your Day at a Glance and Items waiting for you. IT should review mobile notification policies and user guidance so alerts align with organizational expectations for privacy and productivity.

• Notifications aggregate signals from email, Teams activity, and files
• Targets common daily productivity scenarios

Dynamics 365 Contact Center is introducing voice biometrics for caller authentication, with public preview in late August 2026 and GA in mid-September 2026. Contact center owners should plan security, compliance, and rollout/testing for enrolment and verification flows.

• Supports voice enrolment and verification for human-to-human and human-to-AI scenarios
• Can be combined with one-time passwords and knowledge-based challenges