Teams Collaboration with External Users

Hi Nino_Lagumdzija,

Here are some explanations and solutions:

1. Guest Access and External Access: Microsoft Teams offers two collaboration options for external users—Guest Access and External Access.

   • Guest Access allows outsiders to join a team, while External Access lets users communicate with those having Microsoft identities.
     Use guest access and external access to collaborate with people outside your organization - Microsoft Teams | Microsoft Learn

2. Multi-Factor Authentication (MFA):
   If external users encounter issues with MFA, it might be due to their or your organization's security settings. Problems can include issues with authentication apps or unavailability of their phones.
   Problem with multi-factor authentication with multiple organizations - Microsoft Community Hub

3. Visibility of External Organizations:
   Inability to see external organizations might result from Teams admin center settings. Ensure external users' emails are correctly added as guests, and check for any Teams client or account issues.
   Why can't I access teams sites I've been invited to as an external - Microsoft Community

4. Microsoft Teams Admin Center and External Collaboration Settings:
   Administrators manage collaboration settings, so if you lack the rights, involve your IT department or admin for assistance.

5. Differences Among Users:
   Variances in user settings, devices, network conditions, and organizational policies can lead to diverse experiences.