There are different ways to connect different teams through Microsoft Teams. We use B2B direct connect as it is the most user-friendly way and the most secure way as it utilizes Entra and exchanging tenant IDs.

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Required Permissions in Teams

1. Navigate to the Microsoft Teams Admin Center.

2. Click `Global (Org-wide default)

3. Ensure that Join external shared channels is activated. If you changed your settings, click Apply

   Please verify that the langdock.com organization is not blocked. If you use a whitelist, this means that should be on the whitelist. If you use a blacklist, they should not be on the blacklist.

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Create a Microsoft Entra ID B2B direct connect channel

You will need an admin with Microsoft Security permissions to set up the following steps. We will follow the steps detailed in this guide.

The guide from Microsoft goes through these steps:

• Add an organization.

• Configure inbound settings for the organization to allow users from the organization to be invited to your shared channels.

• Configure outbound settings for the organization to allow your users to be invited to the other organization’s shared channels.

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Add an organization

1. Go to Users and then to External access

2. Ensure that Teams and Skype for Business users in external organizations is either set to Allow all external domains or to Allow only specific external domains.

3. If you only want to allow a list of specific domains, click Create a list of external domains that are allowed. Only the external organizations specified are trusted. All other domains will be blocked.

4. Click Add external domains

5. Enter langdock.com and click Add. Then click Done to close the sidebar.

6. Click Save

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Configure outbound settings

8. In a new tab, navigate to the Microsoft Entra Admin Center

9. In the sidebar on the left, click External Identities

10. Select Cross-tenant synchronization

11. Switch to the Organizational settings tab. Then, click Add organization.

12. Click the Tenant ID or domain name field and enter langdock.com.

13. Select Langdock GmbH and click Add.

14. Click Inherited from default in the Outbound access category for the Langdock organization.

15. Go to the B2B direct connect tab.

16. Click Customize settings

17. For users and groups, click Allow access for the access status.

18. Go to the External applications tab and select Allow access for the access status.

19. Click Select external applications

20. Click Add Microsoft applications

21. Check the box for the Office 365 app registration.

22. Click Select

23. Click Save

24. Confirm with Yes. You have now completed the B2B direct connect setup from your side.

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Share your tenant ID with Langdock

25. Please reach out to your contact at Langdock and share your tenant ID with them. You can find the tenant ID on the home page of the Microsoft Entra Admin Center.

26. The Langdock team will invite you and your users to the shared channel. You and your users will receive an invite via email, through which you can join the channel. Please check your spam inbox in case you did not receive an email yet.