Troubleshooting: ‘Cannot Add Guests’ Problem on Microsoft Teams in Windows 10

Microsoft Teams is an enterprise-level chat platform. It is a comprehensive tool designed to create a work environment for individuals and businesses, with features such as storage of usable data, video meetings, editing capabilities, and integration with Microsoft 365. Microsoft’s advanced security controls allow you to control data loss, information barriers, storage policies, and more. With this feature, you can set up your teams as private or public for users with Microsoft 365 accounts.

Microsoft Teams also offers the ability to bookmark content such as files, attachments, and important messages so that the user can spend less time searching for important data. Bookmarking saves time and allows you to hide irrelevant data and find what you need.

What causes the “Can’t add guests” problem in Microsoft Teams?

Microsoft Teams is designed for internal use. Users are usually set up through an active directory and usually belong to the same network or organization. Because it’s free, it can be used outside of the organization, as users can bring in anyone simply by sending them an invitation.

If you are using Microsoft Teams with your personal account, you can invite anyone. However, if you are using a business account associated with a business license, inviting external users is usually limited. Inviting external users to the business team is usually restricted to protect network privacy, but this feature is available. You may need to enable it.

How to solve the “Can’t add guests” problem in Microsoft Teams?


Granting access using a PowerShell command

  1. Open PowerShell as an administrator.
  2. Log in to Office 365/ log in to PowerShell.
  3. Once you are logged in as an Office 365 administrator, enter the following command:
    Set-MsolCompanySettings -UsersPermissionToReadOtherUsersEnabled $True.
  4. Now try adding a guest user and see if the problem is resolved.

Updating Microsoft Teams

  1. Launch the Microsoft Teams application and click on the profile image.
  2. Click Check for updates.

Microsoft Teams will download and install any pending updates. The desktop client automatically checks for updates every time you log in. However, you can also check for pending updates manually.

Check for latency issues

  1. Sometimes Microsoft Teams may experience a temporary delay when guests change.
  2. Wait a few minutes, then try adding a guest user again.

Frequently Asked Questions

  1. From the list of applications, select Admin.
  2. From the menu, select Settings -> Services and Add-ons.
  3. Find Microsoft Teams and enable External Applications.
  4. Set the Allow External Applications in Microsoft Teams option to Enabled.

If you are only listed as a guest in an organization, it means that you have not yet signed up for a free MS Teams organization account.

You cannot add members to the default channel because the team has access to it. You can create up to 200 channels during a team's lifetime.

Members are people who are part of a team. They also perform the normal types of collaboration allowed by team owners. Guests. Guests are people outside your organization who are invited by the team owner to join the team, such as partners or consultants.