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Setting Up a Shared Teams Channel with ContraForce Support

This guide walks you through configuring your Microsoft 365 tenant to enable a shared Teams channel with the ContraForce Success Team. Using shared channels allows direct collaboration without guest accounts or switching tenants.

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Overview

Microsoft Teams shared channels use B2B direct connect, which enables seamless collaboration between organizations. Once configured, you can participate in a shared channel directly within your own Teams environment.

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Prerequisites

  • Global Administrator or External Identity Provider Administrator role in Microsoft Entra
  • Microsoft 365 subscription with Teams enabled
  • Access to the Microsoft Entra admin center

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Configuration Steps

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Step 1: Access Cross-Tenant Settings

  1. Navigate to the Microsoft Entra admin center
  2. Go to External Identities → Cross-tenant access settings Direct link: https://entra.microsoft.com/#view/Microsoft_AAD_IAM/CompanyRelationshipsMenuBlade/~/CrossTenantAccessSettings

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Step 2: Add ContraForce as a Partner Organization

  1. Click Add organization
  2. Enter the domain: contraforce.com
  3. Click Add

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Step 3: Configure Outbound Access

  1. Locate contraforce.com in your list of organizations
  2. Click Inherited from default in the Outbound access column
  3. Select the B2B direct connect tab
  4. Configure the following settings:
    SettingRecommended ValueNotes
    Users and groupsAllow accessSelect “Select users and groups” if you need to limit which users can collaborate
    External applicationsAllow accessEnables access to Teams shared channels
  5. Click Save

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Step 4: Wait for Propagation

Cross-tenant access changes can take up to 24 hours to fully propagate across Microsoft’s systems. If the shared channel doesn’t appear immediately, check again the following day.

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Accepting the Shared Channel Invitation

Once your tenant is configured and ContraForce sends a shared channel invitation:
  1. Open Microsoft Teams
  2. Look for a notification about the shared channel invitation
  3. Accept the invitation
  4. The shared channel will appear in your Teams sidebar

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Troubleshooting

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Shared channel not appearing

  • Verify B2B direct connect settings are saved correctly
  • Confirm the changes have had time to propagate (up to 24 hours)
  • Ensure the user accepting the invitation is included in the allowed users/groups

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Access denied errors

  • Check that Outbound access is configured (not just Inbound)
  • Verify External applications is set to Allow access

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Additional Resources

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Need Help?

If you encounter issues during setup, contact ContraForce Support and include:
  • Screenshot of your Cross-tenant access settings for contraforce.com
  • Any error messages you’re receiving
  • The email address of the user attempting to join the shared channel
Need help? Contact the ContraForce Support team at [email protected].