add contact to list of trusted contacts on teams

Hi @Jochen Meesenburg (Infocontrol)

To ensure I fully understand your situation and provide the most effective assistance, I’ll need a few additional details, such as:

Could you please clarify what you mean by "trusted contacts" in Microsoft Teams?

Are you referring to allowing users from specific external organizations to communicate with your users through Microsoft Teams, or are you looking to establish a trust relationship between organizations through Microsoft Entra ID?

Depending on your scenario, you may find the following Microsoft documentation helpful:

Microsoft Teams: If you want to allow communication with specific external organizations through Teams, you can configure trusted domains in the Teams Admin Center. Please refer to IT Admins - Manage external meetings and chat with people and organizations using Microsoft identities

Microsoft Entra ID: If you want to configure cross-tenant access or establish trust for authentication, such as trusting MFA claims from another organization, please refer to Manage cross-tenant access settings for B2B collaboration

I hope this helps. Let me know if you have any further questions.