Permission & Access Issues

Why Guests Cannot Be Mentioned in Word Documents in Teams

Chanuka Geekiyanage Sep 28, 2026 869 views

Question details

Users are trying to understand why they cannot tag or @mention guest users in Word documents hosted within Microsoft Teams.

Why Guests Cannot Be Mentioned in Word Documents in Microsoft Teams

Product: Microsoft Word in Microsoft Teams
Device & OS: not provided
Scenario: Collaborating on a shared Word document in a Teams channel and attempting to notify an external or guest user via the @mention feature.
Observed behavior: The @mention feature successfully tags internal organization members but fails to recognize, list, or notify guest and external accounts.

Before you start

Verify whether the user you are attempting to mention is classified as an internal member or an external guest within your Azure Active Directory and Teams administrative settings.

Solution 1Recommended

Acknowledge Microsoft 365 Guest Account Limitations and Use Alternatives

Understand that the inability to mention guests is an expected design limitation in Microsoft 365, and use alternative notification methods.

This is an expected behavior in the current Microsoft 365 architecture. While internal users can be easily tagged using the @mention feature in Word documents stored in Teams, guest and external accounts are generally not supported for this specific functionality.

Confirm the user's account type

Check your Microsoft Teams roster to confirm that the user has a '(Guest)' label next to their name, which confirms why they cannot be mentioned in the document.

Notify the guest via Teams chat

As a workaround, return to the Teams channel or chat where the document is shared, type '@' followed by the guest's name, and send a message pointing them to the document.

Submit a feature request

Navigate to the Microsoft Feedback Portal online, search for 'Guest mentions in Word', and submit or vote for this feature request to encourage Microsoft to implement it in future updates.

Acknowledge Microsoft 365 Guest Account Limitations and Use Alternatives

Expected Behavior: Because this is a known systemic limitation with external accounts in Microsoft 365, no immediate technical fix or settings change will enable in-document mentions for guests at this time.

Free Microsoft Office alternative

Try WPS Office for Seamless Team Collaboration

If you are frustrated by Microsoft Word's collaboration limitations with external guests, consider switching to WPS Office. It provides a lightweight, highly compatible, and free alternative with powerful cloud collaboration tools that make working with external partners incredibly simple.

1. Download and Install WPS Office: Visit the official WPS website, download the free client for your operating system, and follow the simple installation prompts.
2. Create or Open a Document: Launch WPS Office and open your existing Word document or create a new one using the WPS Writer application.
3. Share via Link: Click the 'Share' button in the top right corner to generate a collaborative link, allowing anyone—including external users—to edit and comment without strict tenant restrictions.

Highly compatible with Microsoft Word (.docx), Excel, and PowerPoint formatsFree and lightweight alternative to Microsoft 365Seamless cloud document sharing and real-time collaboration via simple web linksNo complex guest-account restrictions when sharing files externallyFamiliar user interface for a smooth transition without learning curves

Frequently Asked Questions

Can I mention external users in Excel or PowerPoint files in Teams?

No. Similar to Word, the @mention functionality in Excel and PowerPoint files stored in Microsoft Teams faces the same external account limitations. Guest users cannot be tagged directly inside the file.

How can I effectively notify a guest user about a document update in Teams?

The most reliable method is to share the document link directly in a Teams channel or private chat and @mention the guest's account within the chat message. This ensures they receive a direct notification.

Is Microsoft planning to add guest mention support to Word documents?

Microsoft continuously updates its features based on user feedback. While there is no official release date for this specific feature, users are encouraged to vote for it on the Microsoft Feedback Community portal to increase its priority.

Document & File Issues