MC1155311 - Viva Engage: Agents in Viva Engage communities Public Preview

Updated March 26, 2026:September 22, 2025: We have updated the timeline.content Thank you for your patience.

Introduction

Agent in Viva Engage communities are now available in Public Preview. Community admins can add agents to communities to help draftenhance knowledge sharing by drafting answers to questions without best or verified answers based on community content.

Shortly after public preview begins, we'll be enhancing agents in communities with SharePoint grounding to improve the accuracy and relevance of AI-generated answers. This update allows the agent to use content and add context to posts by answering follow up questions using the community's conversations and SharePoint site and library.

We’re now adding the option for community admins to specify additionalfrom SharePoint sites outside the community as grounding sources. The agent will only use sites that community admins select, and it drafts answers from items that community members can view (Read).

Weaccess, helping ensure responses are also adding a new capability: taggingcontextually grounded and backed by community members. Tagging bytrusted sources. Agents in communities will only draft answers with content that all community members enables Microsoft 365 copilot-licensed users to @-mention the communityhave access to. You can set up your agent in the commentswith before SharePoint grounding is available and replies of threads with follow up questions and requests to add context to posts. When tagged, the community agent will reply in the post. Tagging by community members will be enabled by default, but can be disabled by community admins in the agent settings.it later.

When this will happen:

• Agents in communities Public Preview:available now Begins September 18th, expected to be complete by late September
• SharePoint Grounding on Community site and library Public Preview (Worldwide):available now
• Grounding on SharePoint sites and libraries outside the community and tagging Begins late September 2025, expected to complete by community members Public Preview (worldwide): Rollout begins July 2026 (previously late March) and should be completed by end of July 2026 (previously mid-April).early October 2025
• General Availability (Worldwide):We will communicate via Message center when we are ready Begins late January 2026, expected to proceed.complete by late February 2026

How this affects your organization:

• Who is affected: Viva Engage community admins and members with Microsoft 365 Copilot licenses; Global and Engage admins managing Viva Engage networks
• What will happen:
• During Public Preview:
• Admins can opt their network into the preview via the Engage admin center: Engage admin center > Tenant Settings > Enable Community Agent Public Preview.

Once enabled, admins can add agents to any community they manage.

Figure i. Add agent to community​

The agent will proactively draft answers to unanswered questions using past conversations.

By default, the agent posts answers automatically.

Admins can configure whether the agent posts answers automatically or only after approval and if tagging by community members is enabled.approval.

Figure ii. Configure the agent's capabilities and knowledge sourcesagent to require answer review before posting​

Grounding on SharePoint sites outside the community

• Community admins can add SharePoint sites and libraries outside the community as additional grounding sources (for sites/libraries they administer).
• When an admin adds a site or library, they’ll be prompted to grant the community’s Microsoft 365 group Read access if it doesn’t already have permission.
• The agent only drafts answers using content that all community members can view (Read).
• By default, the agent uses the community’s SharePoint site and library. Any sites outside the community are optional and add to (not replace) the default grounding.

If Require review is enabled, admins and designated experts will be notified when the agent drafts an answer. They can approve, edit, or dismiss the response.

Figure iii. Community admins and experts can review agent suggestions​

If tagging by community members is enabled, then community members can @-mention the agent in messages.

Coming soon (General Availability):

The agent will only use content that all community members can access.

Admins must be owners of the SharePoint sites they wish to configure.

Admins can add additional SharePoint sites to expand the agent’s grounding knowledge.

The agent will be grounded by default on the community’s SharePoint site.

Community members can tag the community agent in community posts.

All Microsoft 365 Copilot licensed users will have access to the Community Agent by default.

The Community Agent Public Preview toggle will be retired.

What you can do to prepare:

• If participating in preview:
• Opt your network into the preview via the Engage admin center
• Communicate this change to helpdesk staff. 
• Update internal documentation that references Viva Engage Community Agent behavior or setup.
• No action is required at GA; the feature will be on by default.

Learn more: Set up and manage agents in Viva Engage communities | Microsoft Learn

Compliance considerations:

Consideration	Explanation
Uses customer data	The agent accesses SharePoint content to generate answers. Only content accessible to all community members is used.
Introduces AI/ML agent capabilities	The agent uses generative AI to draft responses based on SharePoint content.
Admin control available	(Optional) Community admins can configure which SharePoint sites are used for grounding. Admin must be site owner.
User interaction with generative AI	End users receive AI-generated answers grounded in community conversations and SharePoint content
Can be controlled through Entra ID group membership	Admin access and site ownership can be managed via Entra ID group membership.