channel in Teams

Question

Hello,

Please i need your help on this issue.

From a Shared channel in Teams we are not able to invite external users.

External sharing working in Microsoft Teams under the Teams site, but it is not working under a shared channel as you can see from the picture:

Answer 1

Troubleshooting Steps

1. Verify External Sharing is Enabled at the Tenant Level

• Navigate to the Microsoft Teams Admin Center:
  1. Go to Org-wide settings > External access.
     1. Ensure external access is enabled.
     • Check Guest access settings:
       1. Go to Teams > Guest access in the Admin Center.
          1. Ensure options like "Allow guest access in Teams" are enabled.

2. Check Shared Channel Policies

• Ensure the Teams policies allow external access for shared channels:
  1. In the Admin Center, go to Teams policies > Shared channels policy.
     1. Ensure "Allow external participants" is toggled on.
     • Review the shared channel's settings in Teams admin:
       • Ensure the channel's specific policy doesn’t restrict external sharing.

3. Verify Azure AD B2B Direct Connect Settings

• Shared channels use Azure AD B2B Direct Connect for external users. Verify:
  1. Go to the Azure AD Admin Center.
     1. Under External Identities > Cross-tenant access settings, ensure:
        • Outbound settings for the organization allow invitations.

          - **Inbound settings** of the invited external organization allow users to join.
          

4. Team Owner Permissions

• Ensure the person attempting to invite external users is the owner of the shared channel.
• Only channel owners can invite external users.

5. Restrictions in the Target Tenant

• If you're inviting an external user from another organization:
  • Ensure their tenant allows receiving shared channel invitations. Their administrator may need to adjust Cross-tenant access settings.

6. Verify User Roles

• Confirm that the user you're inviting is added using their email address.
• Ensure they are not restricted by domain filtering (admin settings may block certain domains).

7. Test the Process

• Try inviting an external user by:
  1. Clicking Share channel > With people.
     1. Enter their email address.

8. Check if Shared Channel Feature is Enabled

• Shared channels are available only if your tenant has enabled Teams Connect. If this feature isn't enabled, shared channels won't support external users.

9. Update Microsoft Teams Apps

• Ensure your Teams client is updated to the latest version. If the issue persists, try using the web version of Teams.

10. Check Compliance and Sensitivity Labels

• If the team or channel is protected by sensitivity labels, sharing with external users may be restricted. Review these labels in the Microsoft 365 Compliance Center. Troubleshooting Steps
  1. Verify External Sharing is Enabled at the Tenant Level
  • Navigate to the Microsoft Teams Admin Center:
    1. Go to Org-wide settings > External access.
    2. Ensure external access is enabled.
  • Check Guest access settings:
    1. Go to Teams > Guest access in the Admin Center.
    2. Ensure options like "Allow guest access in Teams" are enabled.
  2. Check Shared Channel Policies
  • Ensure the Teams policies allow external access for shared channels:
    1. In the Admin Center, go to Teams policies > Shared channels policy.
    2. Ensure "Allow external participants" is toggled on.
  • Review the shared channel's settings in Teams admin:
    • Ensure the channel's specific policy doesn’t restrict external sharing.
  3. Verify Azure AD B2B Direct Connect Settings
  • Shared channels use Azure AD B2B Direct Connect for external users. Verify:
    1. Go to the Azure AD Admin Center.
    2. Under External Identities > Cross-tenant access settings, ensure:
       • Outbound settings for the organization allow invitations.
       • Inbound settings of the invited external organization allow users to join.
  4. Team Owner Permissions
  • Ensure the person attempting to invite external users is the owner of the shared channel.
  • Only channel owners can invite external users.
  5. Restrictions in the Target Tenant
  • If you're inviting an external user from another organization:
    • Ensure their tenant allows receiving shared channel invitations. Their administrator may need to adjust Cross-tenant access settings.
  6. Verify User Roles
  • Confirm that the user you're inviting is added using their email address.
  • Ensure they are not restricted by domain filtering (admin settings may block certain domains).
  7. Test the Process
  • Try inviting an external user by:
    1. Clicking Share channel > With people.
    2. Enter their email address.
  8. Check if Shared Channel Feature is Enabled
  • Shared channels are available only if your tenant has enabled Teams Connect. If this feature isn't enabled, shared channels won't support external users.
  9. Update Microsoft Teams Apps
  • Ensure your Teams client is updated to the latest version. If the issue persists, try using the web version of Teams.
  10. Check Compliance and Sensitivity Labels
  • If the team or channel is protected by sensitivity labels, sharing with external users may be restricted. Review these labels in the Microsoft 365 Compliance Center.