I am not able to add the external user in teams channel

Hello Mahesh, I regret to inform you that I don't have further troubleshooting steps to offer. I trust that other knowledgeable users on the forum may provide additional insight into your issue and that this helps you reach a positive outcome. Thank you, Furkaan

Hi Furkaan,

Thank you very much for your reply.

I can able to add another user from the same domain in the team's channel.

Only one specific user is not able to add. For him, it's showing Unknown User.

I chat with him as a guest as well as an external user. But, still, I am not able to add him to the channel.

Hi Mahesh,

Thank you for reaching out. My name is Furkaan, a user just like you. I’d be happy to help you with your concerns. There could be a couple of reasons why you can't add an external user to a channel in Microsoft Teams. Here's how to troubleshoot:

Check Permissions:

Make sure you have permission to add guests to the channel. Team owners and members with the "add members" permission can invite external users.

External Access Enabled:

For your organisation, external access for guest users might be disabled by the admin. The IT admin needs to enable external access in the Teams admin centre.

Specific Organisation Blocked:

If the external user's email address belongs to a specific organisation, it might be blocked for guest access. The admin needs to unblock that organisation in the Teams admin centre.

Valid Email Address:

Double-check that you entered the external user's email address correctly. Here's how to add an external user to a channel if you have permissions:

Open the Teams app and navigate to the specific channel. Click the three dots (...) next to the channel name and select "Manage channel." Click on "Members." Enter the email address of the external user. Choose "Add [email address] as guest" and then "Add." The external user will receive an email invite to join the team. Once they accept, they'll have access to the channel (with guest user permissions).

For more detailed instructions and troubleshooting, you can refer to the official Microsoft documentation on adding guests to a team: https://support.microsoft.com/en-us/office/add-guests-to-a-team-in-microsoft-teams-fccb4fa6-f864-4508-bdde-256e7384a14f

If you have any additional questions or concerns, please don’t hesitate to reach out. Give back to the Community. Help the next person who has this issue by indicating if this reply solved your problem. Click Yes or No below. Best Regards, Furkaan