Manage guest users in Microsoft Teams
Invite guests only from approved domains, enforce a mandatory expiration date and NDA tracking, and remove external users automatically once the term ends - with no manual effort. Part of the Valprovia Governance module (Professional tier).
Basics
How do you manage external users in Microsoft Teams?
Microsoft Teams offers two ways to collaborate externally: guest access invites external users directly into a team and grants access to the data stored there; external access only allows chat communication across domain boundaries. In both cases externals use their own company account - no new accounts are needed.
Beyond a guest-access toggle, the Microsoft standard offers little control. The real problem is removal: team owners add externals quickly, but memberships are permanent and must be removed manually per team. If guests stay members longer than needed, they retain uncontrolled access to team data - a security risk.
Valprovia Governance automates exactly that: every guest invitation requires a mandatory expiration date, and once it passes the guest is removed automatically - the owner can extend it beforehand. Domain allowlists define which domains guests may be invited from, and a guest policy controls who can invite guests at all. NDA status is tracked per guest and workspace, and guests see only the workspaces they are invited to - no directory, no Admin Portal. External collaboration stays possible without losing control. More in the Microsoft Teams governance module.
Frequently asked questions about external user management in Microsoft Teams
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What is the difference between guest access and external access?
Guest access invites external users directly into a team and gives them access to the data stored there. External access only allows chat communication across domain boundaries, without file access. In both cases externals use their own company account.
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Why is managing external users manually a risk?
In the Microsoft standard, guest memberships are permanent and must be removed manually per team. If externals are forgotten after a project ends, they keep uncontrolled access to team data - a security and compliance risk. The effort also grows linearly with the number of external users.
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How are external users removed automatically?
Externals are invited with an expiration date. Once it passes, Valprovia Governance removes them from the team automatically - no manual follow-up. The owner can extend the expiration date at any time if the collaboration continues.
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Can I restrict guests to specific domains?
Yes. Domain allowlists define which external domains guests may be invited from (e.g. only @partner-company.com). The allowlist is configured globally and can be overridden per template or security level.
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Who is allowed to invite external guests?
A guest policy controls this with four options: nobody, anybody, only guests already in the tenant, or new and existing guests. IT decides how open external collaboration is per workspace.
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Is NDA signing tracked?
Yes. When NDA management is enabled in the template, guests cannot be invited without a confirmed NDA status. The status is tracked per guest and workspace, and administrators can view NDA compliance across all workspaces.
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What do external guests see in the environment?
External guests see only the workspaces they are invited to. They cannot browse other workspaces, see the workspace directory, or access the Admin Portal.
Make external collaboration secure - with no manual effort
See how Valprovia Governance manages external users with NDAs, expiration dates and automatic removal. Talk to one of our experts.