Announcing more seamless collaboration in Microsoft Teams for multi-tenant organizations - Microsoft Community Hub

Today, we’ve started rolling out new features tailored to multi-tenant organizations in the new Microsoft Teams desktop app for Windows. These features will be..

Multitenant organization scenario and Microsoft Entra capabilities - Microsoft Entra ID

What is a cross-tenant synchronization in Microsoft Entra ID? - Microsoft Entra ID

Create focused collaboration with the new Microsoft Teams channels experience - Microsoft Community Hub

What's New in Microsoft Teams

Build community with new Microsoft Teams features

Joining a multitenant was unsuccessful Contact the organization administrator for an invitation to join - Microsoft Q&A

M365 Cross-Cloud and Cross-Tenant Collaboration Scenarios - Microsoft Community Hub

A Handy Microsoft Teams Migration Checklist & Guide

Introducing new features for multi-tenant teams in Microsoft Teams., Rachel O'Shea posted on the topic